The most famous location in China was home to whole dynasties worth of imperial rulers.

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

This giant Boston statue of Mary is standing on a globe to show her power over the universe.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

America’s oldest community theater, this Boston club has been in operation since 1877.

Radical Bookstore and Community Space.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

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

"Mock all and sundry things, but leave the saints alone."

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

This old mill and former police station now present a world-class collection of Orthodox iconography.

Once the largest gravity dam in the world.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

A wall of chewing gum moonlights as collective art.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A fitting attraction for the corn capital of the world.

The oldest continuously-operated inn in the United States, once owned by Henry Ford.

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

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

Few other hotels can rival the grandeur of the Castle in the Rockies.