Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

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

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

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

The United States Capitol's former columns still stand.

World's first "penitentiary," meant to be humane, drove men insane.

Located in Faneuil Hall, the headquarters of the Ancient and Honorable Artillery Company of Massachusetts has stood the test of time.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

No one messes with the Massachusetts sacred cod, not this time...

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

Resting place of Hollywood's immortals is also site of summer film screenings.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A cluttered and astounding collection of antiquities and curiosities.

An unusual round church in London with a Templar past.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.