Moscow's imposing monument to the Space Age.

The world's second-largest excavated hole.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

Former headquarters of the KGB.

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

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

Nightmarish example of the unintended consequences of weapons testing.

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

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

A little church on a tiny island looks like something from a fairy tale.

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

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

This Russian religious complex is a Frankenstein's chapel that includes influence from almost all the major faiths.

Stunning examples of Russia's 18th-century wooden architecture.

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.

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

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

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.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

A moving and macabre World War I-era painting by the great artist Otto Dix.

This unusual sculpture depicts how coins were made when minting was done by hand.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.