One of the last examples of Soviet architectural propaganda has a few technological tricks up its sleeve.

Former estate of Lenin, now home to his death mask.

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

This historic system is the zero level benchmark for measuring the depths and altitudes of the Baltic.

A man-made island fort that has housed soldiers, scientists, and ravers.

A solemn, monumental, kitschy palace of worship honoring victory in the Great Patriotic War.

A Marxist summer camp full of fantastical statues lies tucked away and forgotten in the forests of Moscow.

An iconic Soviet statue of working-class people.

Moscow's imposing monument to the Space Age.

The world's first museum dedicated to the work of game-changing naturalist Charles Darwin.

This massive monument honors the first human in space.

Some Moscow residents once claimed the bizarre, contorted mass of metal on top of the building was used to manipulate minds.

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

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

Stalinist skyscraper built with help of cryotechnology.

One of the world's tallest statues is also one of its most hated.

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

Former headquarters of the KGB.