1. Lincoln Memorial, Washington, DC
   Martin Luther King, Jr. Memorial, Washington, DC
2. Perry's Victory and International Peace Memorial, Ohio
   Korean War Veterans Memorial, Washington, DC

The Lincoln Memorial in Washington, DC, took more than 50 years to build and open to the public. The train station was a proposed location for the memorial.

1. Mount Rushmore National Memorial, South Dakota
   Ocmulgee National Monument, Georgia
2. De Soto National Memorial, Florida
   Caesar Rodney Statue, Delaware

The Mount Rushmore National Memorial in South Dakota is a massive accomplishment. Over 90% of Mount Rushmore was carved using dynamite. The blasts removed approximately 450,000 tons of rock. Details were finished with jackhammers and hand chisels.

1. Korean War Veterans Memorial, Washington, DC
   Liberty Bell, Pennsylvania
2. Lincoln Memorial, Washington, DC
   Perry's Victory & International Peace Memorial, Ohio

The Liberty Bell in Pennsylvania is a symbol of American independence. The original cast was made in London, England, in 1752, by the company Lester and Pack. The strike note the Liberty Bell makes is E flat.

1. World War II Valor in the Pacific National Monument, Hawaii
   Washington Monument, Washington, DC
2. El Malpais National Monument, New Mexico
   Fort Frederica National Monument, Georgia

The Washington Monument in Washington, DC, is a monument that commemorates the presidency of George Washington. Plans for the monument began before Washington had become president. The original design was much different than the final product.

1. Korean War Veterans Memorial, Washington, DC
   Walnut Canyon National Monument, Arizona
2. Ocmulgee National Monument, Georgia
   Thomas Jefferson Memorial, Washington, DC

The Thomas Jefferson Memorial in Washington, DC, is on land that was created by landfill, dredged from the Potomac River. It was once the site of Washington's most popular beaches. It was originally a memorial to Theodore Roosevelt.

1. Sunset Crater Volcano National Monument, Arizona
   Franklin Delano Roosevelt Memorial, Washington, DC
2. Thomas Jefferson Memorial, Washington, DC
   Ocmulgee National Monument, Georgia

The Sunset Crater Volcano National Monument is a cinder cone, located north of Flagstaff in Arizona. Sunset Crater is the youngest in a string of volcanoes in the San Francisco volcanic field that is related to the nearby San Francisco Peaks.

1. Liberty Bell, Pennsylvania
   Perry's Victory and International Peace Memorial, Ohio
2. World War II Valor in the Pacific National Monument, Hawaii
   Federal Hall National Memorial, New York

The Federal Hall National Memorial in New York is the building that serves as a museum and memorial to the first President of the United States and the beginnings of the country. It was where the United States Bill of Rights was introduced in the First Congress. The original building was demolished in 1812.

1. Franklin Delano Roosevelt Memorial, Washington, DC
   Liberty Bell, Pennsylvania
2. Vietnam Veterans Memorial, Washington, DC
   Perry's Victory and International Peace Memorial, Ohio

The Franklin Delano Roosevelt Memorial in Washington, DC, is a presidential memorial dedicated to the memory of FDR, the 32nd President of the United States, and to the era he represents. The monument, spread over 7.5 acres, traces 12 years of US history.

1. Franklin Delano Roosevelt Memorial, Washington, DC
   Caesar Rodney Statue, Delaware
2. Lincoln Memorial, Washington, DC
   Jefferson National Expansion Memorial, Missouri

The Jefferson National Expansion Memorial in Missouri is host to the largest arch in the world. The arch is just as wide as it is tall, and visitors can ride to the top. Although the location was chosen for the Jefferson National Expansion Memorial as early as 1935, the arch was not completed until 1965.

1. Wright Brothers National Monument, North Carolina
   Perry's Victory and International Peace Memorial, Ohio
2. Flight 93 National Memorial, Pennsylvania
   Liberty Bell, Pennsylvania

The Wright Brothers National Monument, located in Kill Devil Hills, North Carolina, commemorates the first successful, sustained, powered flights in a heavier-than-air machine. Wilbur and Orville Wright chose the location based on information from the U.S. Weather Bureau about the area's steady winds.

1. Korean War Veterans Memorial, Washington, DC
   Mount Rushmore National Memorial, South Dakota
2. Dinosaur National Monument, Colorado
   Walnut Canyon National Monument, Arizona

The Dinosaur National Monument is located on the southeast flank of the Uinta Mountains, on the border between Colorado and Utah, near the Green and Yampa Rivers. This park has over 800 paleontological sites and fossils of dinosaurs, including Allosaurus, Deinonychus, and Abydosaurus.

1. Wupatki National Monument, Arizona
   Thomas Jefferson Memorial, Washington, DC
2. Korean War Veterans Memorial, Washington, DC
   Organ Cactus National Monument, Arizona

The Wupatki National Monument in Arizona is rich in Native American ruins. The monument is administered by the National Park Service in connection with the nearby Sunset Crater Volcano National Monument. Wupatki was listed on the National Register of Historic Places on October 15, 1966.

1. Perry's Victory & International Peace Memorial, Ohio
   Franklin Delano Roosevelt Memorial, Washington DC
2. Wright Brothers National Monument, North Carolina
   Organ Pipe Cactus National Monument, Arizona

The Organ Pipe Cactus National Monument in Arizona has archaeological evidence that places humans in this area about 1,600 years ago. Remnants of projectile points, seashells, pottery, rock art, and the paths they followed on foot are still carved into the desert floor. It is the only place in the US where organ pipe cactus grows without cultivation.

1. Devils Tower National Monument, Wyoming
   Korean War Veterans Memorial, Washington, DC
2. Walnut Canyon National Monument, Arizona
   Caesar Rodney Statue, Delaware

Devils Tower was the first National Monument in the United States, declared in 1906 by President Teddy Roosevelt. More than 150 rock climbing routes have been established on Devils Tower. Devils Tower is more than four football fields tall.

1. Mount Rushmore National Memorial, South Dakota
   Perry's Victory and International Peace Memorial, Ohio
2. Liberty Bell, Pennsylvania
   Montezuma Castle National Monument, Arizona

The Montezuma Castle National Monument protects a set of well-preserved Ancestral Puebloan cliff dwellings near the town of Camp Verde, Arizona. The dwellings were built and used by the Sinagua people, a pre-Columbian culture closely related to the Hohokam and other indigenous people.

1. Vietnam Veterans Memorial, Washington, DC
   Walnut Canyon National Monument, Arizona
2. Liberty Bell, Pennsylvania
   Muir Woods National Monument, California

Muir Woods National Monument is a unit of the National Park Service on Mount Tamalpais, near the Pacific coast. It is part of the Golden Gate National Recreation Area, 12 miles north of San Francisco. It protects 554 acres, half of which are old growth coast redwood.

1. Lincoln Memorial, Washington, DC
   Bandelier National Monument, New Mexico
2. Liberty Bell, Pennsylvania
   Caesar Rodney Statue, Delaware

The Bandelier National Monument in New Mexico is preserving history that extends back over 10,,000 years, when nomadic hunter-gatherers followed migrating wildlife across the mesas and canyons. By 1150 CE, Ancestral Pueblo people began to build more permanent settlements.

1. Fort Pulaski National Monument, Georgia
   Vietnam Veterans Memorial, Washington, DC
2. Ocmulgee National Monument, Georgia
   Lincoln Memorial, Washington, DC

The Fort Pulaski National Monument in Georgia took 18 years to build, from 1829-1847. Around 25,000,000 bricks were used to construct Fort Pulaski. Fort Pulaski's moat averages seven to eight feet deep. After 1862, Fort Pulaski was used as a military and political prison.

1. Franklin Delano Roosevelt Memorial, Washington, DC
   Cedar Breaks National Monument, Utah
2. Mount Rushmore National Memorial, South Dakota
   Liberty Bell, Pennsylvania

The Cedar Breaks National Monument is a natural amphitheater that stretches across 3 miles and has a depth of over 2,000 feet. The elevation of the rim of the amphitheater is 10,000 feet above sea level. Its rim visitor center is open from June through October.

1. Franklin Delano Roosevelt Memorial, Washington, DC
   Mount Rushmore National Memorial, South Dakota
2. White Sands National Monument, New Mexico
   De Soto National Memorial, Florida

The White Sands National Monument is entirely made up of gypsum crystals that form dunes, stretching over 275 square miles. The idea to make this area a National Park was first thought of way back in 1898. The park is on the Register of Historic Places.

1. Thomas Jefferson Memorial, Washington, DC
   Wright Brothers National Monument, North Carolina
2. Sunset Crater Volcano National Monument, Arizona
   De Soto National Memorial, Florida

The De Soto National Memorial in Florida is in Manatee County, 5 miles west of Bradenton. This commemorates the 1539 landing of Hernando de Soto and the first extensive organized exploration by Europeans of what is now the southern United States.

1. Arlington House, Virginia
   Lincoln Memorial, Washington, DC
2. Vietnam Veterans Memorial, Washington, DC
   Perry's Victory and International Peace Memorial, Ohio

The Arlington House in Virginia is on a hillside rising above the Potomac River and overlooking Washington, DC. The 19th-century mansion seems out of place amid the more than 250,000 military gravesites that surround it.

1. World War II Valor in the Pacific National Monument, Hawaii
   Mount Rushmore National Memorial, South Dakota
2. John Day Fossil Beds National Monument, Oregon
   Flight 93 National Memorial, Pennsylvania

The John Day Fossil Beds National Monument is in east-central Oregon. It is located in the John Day River basin and managed by the National Park Service. It has well-preserved layers of fossils that lived in the region between the Eocene, about 45 million years ago, and the Miocene, about 5 million years ago.

1. Fort McHenry National Monument and Historic Shrine, Maryland
   Wright Brothers National Monument, North Carolina
2. World War II Valor in the Pacific National Monument, Hawaii
   Sunset Crater Volcano National Monument, Arizona

The Fort McHenry National Monument and Historic Shrine is a historic American coastal star-shaped fort, best known for its role in the War of 1812 when it successfully defended Baltimore Harbor from an attack by the British navy in 1814.

1. Fort Frederica National Monument, Georgia
   World War II Valor in the Pacific National Monument, Hawaii
2. Mount Rushmore National Memorial, South Dakota
   Walnut Canyon National Monument, Arizona

Fort Frederica National Monument, on St. Simons Island in Georgia, preserves the archaeological remnants of a fort and town built by James Oglethorpe between 1736 and 1748 that was made to protect the southern boundary of the British colony of Georgia from Spanish raids.

1. Martin Luther King, Jr. Memorial, Washington, DC
   Korean War Veterans Memorial, Washington, DC
2. Fort Sumter National Monument, South Carolina
   Perry's Victory and International Peace Memorial, Ohio

Fort Sumter National Monument is a sea fort in Charleston, South Carolina. It is notable for two battles of the American Civil War. It was one of a number of special forts planned after the War of 1812. Aesthetically high walls and heavy masonry were important as a grade of structural integrity.

1. Ocmulgee National Monument, Georgia
   Vietnam Veterans Memorial, Washington, DC
2. Martin Luther King, Jr. Memorial, Washington, DC
   El Malpais National Monument, New Mexico

The El Malpais National Monument is located in western New Mexico, in the Southwestern United States. The name El Malpais comes from the Spanish term Malpaís, meaning badlands, because of the extremely barren and dramatic volcanic field that covers most of the park.

1. Ocmulgee National Monument, Georgia
   Thomas Jefferson Memorial, Washington, DC
2. Jefferson National Expansion Memorial, Missouri
   Fort Matanzas National Monument, Florida

The Fort Matanzas National Monument in Florida was designated a United States National Monument on October 15, 1924. The monument consists of a 1740 Spanish fort called Fort Matanzas, as well as about 100 acres of salt marsh and barrier islands.

1. Perry's Victory & International Peace Memorial, Ohio
   Liberty Bell, Pennsylvania
2. Johnstown Flood National Monument, Pennsylvania
   Caesar Rodney Statue, Delaware

The Caesar Rodney Statue in Delaware is dedicated to Caesar Rodney, who was a delegate from Delaware and served in the First and Second Continental Congress. Rodney also served as a militia commander in the American Revolutionary War.

1. Perry's Victory and International Peace Memorial, Ohio
   Martin Luther King, Jr. Memorial, Washington, DC
2. El Malpais National Monument, New Mexico
   Sunset Crater Volcano National Monument, Arizona

The Martin Luther King, Jr. Memorial, Washington, DC, boasts a centerpiece called the Stone of Hope. It features a 30-foot statue of Martin Luther King that is looking toward the Tidal Basin and the horizon. The Stone of Hope is cut out of a larger boulder called the Mountain of Despair, which serves as the entryway to the memorial.

1. Craters of the Moon National Monument and Preserve, Idaho
   Martin Luther King, Jr. Memorial, Washington DC
2. Flight 93 Nationial Memorial, Pennsylvania
   El Malpais National Monument, New Mexico

The Craters of the Moon National Monument and Preserve is a large ocean of lava in the Snake River Plain in central Idaho. The Monument was established on May 2, 1924. In November 2000, President Clinton greatly expanded the monument area.

1. Martin Luther King, Jr. Memorial, Washington, DC
   Ocmulgee National Monument, Georgia
2. Governors Island National Monument, New York
   Sunset Crater Volcano National Monument, Arizona

The Governors Island National Monument in New York is a site of the Native Americans in the Manhattan region referred to the island as Paggank or "nut island," likely after the island's plethora of hickory, oak, and chestnut trees.

1. Caesar Rodney Statue, Delaware
   Vietnam Veterans Memorial, Washington, DC
2. Oak Alley Plantation, Louisiana
   Ocmulgee National Monument, Georgia

The Oak Alley Plantation is a historic plantation located on the west bank of the Mississippi River, in the community of Vacherie, St. James Parish. Oak Alley is named for its canopied path - a double row of southern oak trees about 800 feet long - that was planted in the early 18th century

1. Ocmulgee National Monument, Georgia
   Vietnam Veterans Memorial, Washington, DC
2. Franklin Delano Roosevelt Memorial, Washington, DC
   Perry's Victory & International Peace Memorial, Ohio

The Ocmulgee National Monument in Georgia is a prehistoric American Indian site. American Indians first came here during the Paleo-Indian period, hunting Ice Age mammals. Many different American Indian cultures occupied this land for thousands of years.

1. World War II Memorial, Washington, DC
   Ocmulgee National Monument, Georgia
2. Perry's Victory and International Peace Memorial, Ohio
   Korean War Veterans Memorial, Washington, DC

The World War II Memorial in Washington, DC, is comprised of granite, bronze, and water. Each wall contains many famous quotes from various historic figures. The wall of stars on the memorial totals 4,048.

1. World War II Valor in the Pacific National Monument, Hawaii
   Lincoln Memorial, Washington, DC
2. Jefferson National Expansion Memorial, Missouri
   Caesar Rodney Statue, Delaware

The World War II Valor in the Pacific National Monument in Hawaii is a US National Monument honoring events, people, and sites of the Pacific Theater engagement of the United States during World War II.

1. Vietnam Veterans Memorial, Washington, DC
   Sunset Crater Volcano National Monument, Arizona
2. El Malpais National Monument, New Mexico
   De Soto National Memorial, Florida

The Vietnam Veterans Memorial was built without government funds. A college student won the memorial’s design contest. When the Vietnam Veterans Memorial was first dedicated three decades ago, Lin’s wall contained the names of 57,939 American servicemen that had lost their lives.

1. Little Bighorn Battlefield National Monument, Montana
   Flight 93 Nationial Memorial, Pennsylvania
2. Sunset Crater Volcano National Monument, Arizona
   Wright Brothers National Monument, North Carolina

The Little Bighorn Battlefield National Monument in Montana preserves the site of the 1876 Battle of the Little Bighorn. It's also a memorial to those who fought in the battle: George Armstrong Custer's 7th Cavalry and Lakota-Northern Cheyenne and Arapaho force.

1. Castle Clinton National Monument, New York
   Caesar Rodney Statue, Delaware
2. Muir Woods National Monument, California
   Liberty Bell, Pennsylvania

The Castle Clinton National Monument was once known as Castle Garden. It is a circular sandstone fort in Battery Park. It is best remembered as America's first immigration station, where more than 8 million people arrived in the U.S. from 1855 to 1890.

1. Cabrillo National Monument, California
   Perry's Victory and International Peace Memorial, Ohio
2. El Malpais National Monument, New Mexico
   Liberty Bell, Pennsylvania

The Cabrillo National Monument is located at the southern tip of the Point Loma Peninsula in San Diego, California. It commemorates the landing of Juan Rodríguez Cabrillo at San Diego Bay on September 28, 1542.

1. Liberty Bell, Pennsylvania
   Lincoln Memorial, Washington, DC
2. Caesar Rodney Statue, Delaware
   Korean War Veterans Memorial, Washington, DC

The Korean War Veterans Memorial was authorized by the U.S. Congress on October 28, 1986. The eventual design selected was by the firm Cooper-Lecky Architects. The walls of the triangle are made of more than 100 tons of highly polished Academy Black granite from California.

1. Liberty Bell, Pennsylvania
   Johnstown Flood National Monument, Pennsylvania
2. El Malpais National Monument, New Mexico
   Theodore Roosevelt Island National Memorial, Washingon, DC

The Theodore Roosevelt Island National Memorial in Washington, DC, is the only memorial dedicated to the 26th president in the nation’s capital. The architectural memorial and the restored natural landscape surrounding it together form a living memorial to the man known as the “Great Conservationist.”

1. Castillo De San Marcos National Monument, Florida
   Walnut Canyon National Monument, Arizona
2. Ocmulgee National Monument, Georgia
   Liberty Bell, Pennsylvania

Castillo De San Marcos, is located on the shore of Matanzas Bay in Florida. It is the oldest masonry fort in the United States.

1. Johnstown Flood National Memorial, Pennsylvania
   Korean War Veterans Memorial, Washington, DC
2. Mount Rushmore National Memorial, South Dakota
   Fort Frederica National Monument, Georgia

The Johnstown Flood National Memorial in Pennsylvania commemorates the 2,200 people who died in the Johnstown Flood on May 31, 1889, which was caused by a break in the South Fork Dam, a natural earth-made structure. This preserves the remains of the dam and portions of the former Lake Conemaugh bed.

1. Sunset Crater Volcano National Monument, Arizona
   World War II Valor in the Pacific National Monument, Hawaii
2. Lincoln Memorial, Washington, DC
   Colorado National Monument, Colorado

The Colorado National Monument in Colorado is host to canyons as deep as 500 feet and rock monoliths as tall as 450 feet. Construction of Rim Rock Drive began in the 1930s by the Civilian Conservation Corps and was completed in the 1950s.

1. Ocmulgee National Monument, Georgia
   Perry's Victory and International Peace Memorial, Ohio
2. Mount Rushmore National Memorial, South Dakota
   Flight 93 Nationial Memorial, Pennsylvania

Perry's Victory and International Peace Memorial in Ohio commemorates the Battle of Lake Erie that happened near Ohio's South Bass Island, where Commodore Oliver Hazard Perry led a fleet to victory in one of the most significant naval battles to occur in the War of 1812.

1. Fort Caroline National Memorial, Florida
   Lincoln Memorial, Washington, DC
2. Vietnam Veterans Memorial, Washington, DC
   Ocmulgee National Monument, Georgia

Fort Caroline National Memorial was one of the first French colonies in the present-day United States, located on the banks of the St. Johns River in what is now Jacksonville, Florida. In 1953, the National Park Service established the Fort Caroline National Memorial.

1. Perry's Victory and International Peace Memorial, Ohio
   Ocmulgee National Monument, Georgia
2. LBJ Memorial Grove on the Potomac, Washington, DC
   Liberty Bell, Pennsylvania

The LBJ Memorial Grove on the Potomac in Washington, DC, sits both on the Potomac River and by the Mount Vernon Trail, which runs from George Washington's estate, Mount Vernon, to Theodore Roosevelt Island. It is named after Lyndon B. Johnson's wife in 1968 for her work in beautifying the Capital and surrounding areas.

1. El Malpais National Monument, New Mexico
   Johnstown Flood National Monument, Pennsylvania
2. Martin Luther King, Jr. Memorial, Washington, DC
   Walnut Canyon National Monument, Arizona

Walnut Canyon National Monument in Arizona is a United States National Monument located about 10 miles southeast of downtown Flagstaff. It is on the Colorado Plateau and cuts through the Permian Kaibab Limestone, which shows the Toroweap Formation and Coconino Sandstone.