Moscow's imposing monument to the Space Age.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

Cold war icon and onetime "hole" in the iron curtain.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

An out-of-place slice of France, smack in the middle of Shanghai.

A museum glorifying the life of Stalin, located in the city of his birth.

Unusual building appears to be haphazardly built from randomly piled bricks.

Luxury hotel turned into a refugee camp, then turned back into a luxury hotel.

The charmingly disheveled clock tower of Tbilisi's puppet theater.

Ancient serpentine sacrifice holder that has stood the test of time.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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

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

Stalinist skyscraper built with help of cryotechnology.

Museum celebrating the achievements of the Soviet space program.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Apartment complexes built into huge repurposed natural gas tanks.

This once-grandiose behemoth of a monument from the socialist era now sits quiet and closed up.

An abandoned saucer-shaped monument in the Bulgarian mountains.