An old railroad grade built for the construction of Hoover Dam is now a recreational trail featuring several tunnels and sweeping views of Lake Mead.

This arid landscape was once a lush wetland. Today, it's a paleontological site filled with fossilized mammoths, sabertooth cats, and more.

Originally built as a promotional giveaway, this suburban house was designed to be an IRL version of the Simpson home.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

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

A devastating booze inferno poured through the streets, claiming several victims who drank it.

Once the most densely populated place in the world, this island is now a ghost town.

A plaque marks the site directly below the mid-air detonation of the atomic bomb over Hiroshima.

A monument to the two U.S. officers killed by North Korean troops while trying to trim a poplar tree.

The best place for scenic views of the DMZ and North Korea.

The former home of a foreign correspondent who reported on Korea’s independence movement has been restored and is open to the public.

The 400-year-old remains of the samurai invasion of Korea.

Site of the 1879 Cheyenne Outbreak and the site where famed Sioux chief Crazy Horse met his fate.

A rancher expanding a natural spring for his cattle came up with bones – lots and lots of them.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.

The Lone Star plaque hangs in a bombed-out bunker in Normandy to honor a Texan colonel's heroic actions on D-Day.

The post-apocalyptic remnants of a bucolic town ruined by a plane crash.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

A subterranean shelter remains intact under a busy Paris railway station.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

An actor's tribute to a former mentor.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

This abandoned Abraham Lincoln statue has also earned the honorary of "World's Ugliest."