The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

New Orleans' famous cemetery, located on the site of a former race track.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

Home to items never before seen by the public.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

The headquarters of the Audubon Naturalist Society is a small slice of heaven for nature lovers.

An overlooked memorial honoring the local Washington residents who died in World War I.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

The site of the climactic scene from the classic horror film is now a historic landmark.

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

FDR's Art Deco hospital tower was hopelessly inefficient.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

A tribute to Ponce de Leon's supposed quest for eternal youth.

This sidewalk monument honors more than 50 civil rights activists who helped change the face of America.

Florida’s half-sized replica of the Vietnam Veterans Wall.

World's largest magnetic research facility.

The highway's southernmost spot is a beloved local attraction.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.