This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

Back in the tiny USSR.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

Museum celebrating the achievements of the Soviet space program.

Immortal combat in a Moscow museum.

This nostalgic Russian museum is full of USSR cultural artifacts from the 1970s and 80s.

This space age health spa looks like a supervillain's lair.

Sleep in a climate-controlled plastic bubble for the night.

The 55-pound trichobezoar was removed from the stomach of a cow.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

The "Seinfeld" diner.

A retrofuturistic art installation in the Pittsburgh Airport.

A notoriously corrupt Chief of Police's deteriorating Greek-themed playhouse.

At least seven hues of blue and turquoise make this freshwater lagoon unique.

This singular broken monument, now housed in a museum, was the cause of a worldwide "Mayan Doomsday" phenomenon.

This ceremonial Mexican square looks as though it belongs in a science fiction movie.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Huge hole looks down onto an underground beach populated with sea lions.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

The world's longest and deepest train tunnel.