Gargantuan home of Russian science.

Stalinist skyscraper built with help of cryotechnology.

The tallest hotel in Europe.

Former headquarters of the KGB.

World's largest bell sits on the grounds of the Kremlin in Moscow.

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

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

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

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

A former military outpost of Ivan the Terrible, the 16th-century church contains some of the rarest examples of Eastern Orthodox mural paintings.

Russia's own leaning tower was built on a tragic historical fable.

Replica of mosque destroyed by Russia in the 16th century.

This nostalgic Russian museum is full of USSR cultural artifacts from the 1970s and 80s.

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

The Nazis lost more men trying to take this Russian-held Stalingrad apartment block than they did when taking Paris.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

Where the author wrote her beloved "Little House" books.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

This is not your typical jungle gym.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

Less a museum than a bizarre fantasy world created by artists and engineers.