The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This park is home to California's first oil boomtown, with structures that have stood for more than a century.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

This famed Silk Road oasis was one of the largest cities in the world before it was destroyed by a Mongol horde.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A Roman-style column in Oregon hides a spiral staircase inside.

999 stairs lead visitors through a massive hole in a mountain known as the Gateway to Heaven.