Dark, eerie exhibits make for a surreal exploration of the subconscious.

An early-20th-century "dacha" village of quaint cottages curiously located in a modern part of Moscow.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

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

Palace where the nearly un-killable Rasputin was murdered.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

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

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

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

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

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

Skeletons dressed in extravagant 18th century royal costumes cavort in the aisles of this German basilica.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

An encyclopedic collection of mammal penises.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Centuries-old bridges grown from tangled roots.

The ancient tomb acts as a calendar that keeps perfect time.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.