The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

This mysterious structure by the Washington Monument is a flood barrier designed to protect the White House against rising waters.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Decades before the scandal, this staircase on the river was a literal "water gate."

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Mausoleums, astronomy, and animatronic dinosaurs at this memorial to an assassinated American president.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

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

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

The final resting place of New Orleans' most famous voodoo priestess.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

Yo, Adrian!

The record holder for the world’s largest peach.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

"May the force be with you always."

This quirky Arkansas wax museum does not shy away from the macabre and the grotesque.

The legacy of baseball great Roberto Clemente is preserved in a retired Pittsburgh fire station.

FDR hoped to find a cure for polio in this Georgia town's warm springs.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.