Notorious artist squat renovated into legal studios.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This small museum is basically a time capsule of daily life in the Soviet Union.

One of the largest collections of socialist realist art shows the surprising depth of the official art of the Soviet Union.

This frozen-in-time summer home outside Moscow provides a look at Russian life in the 1950s.

Its front wall is striped with a menagerie of fantastic beasts and magnificent monsters.

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

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Legends of time travel and magical woodland creatures bolster the natural charm of this verdant sanctuary in the midst of Moscow.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

Museum celebrating the achievements of the Soviet space program.

Thirteen sculptures in central Moscow graphically depicting vices of the modern world.

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

Immortal combat in a Moscow museum.

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

The mummified relic of St. Catherine sits forever on a golden throne.

An extraordinary collection of 18th century anatomical waxworks.

This zoological museum began as the first great curiosity cabinet.

An amazing collection of wax anatomical models and terratological models.

David Sedaris called it "The greatest shop in the world."

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.