In the hinterlands of Serbia's capital, a giant reflective mushroom houses an aeronautical history of the former Yugoslav republic.

Immortal combat in a Moscow museum.

Museum celebrating the achievements of the Soviet space program.

An iconic Soviet statue of working-class people.

Moscow's imposing monument to the Space Age.

300-year-old villagers houses and traditional churches preserve a nearly lost piece of Russian history.

Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

A dormant lightning machine equal to all the power in Russia.

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

A monument to Malchik, a stray dog who lived in a Moscow metro station until his tragic death.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

This small museum is basically a time capsule of daily life in the Soviet Union.

Stalinist skyscraper built with help of cryotechnology.

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

The avant-garde design was able to bypass strict Soviet regulations on architecture.

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

Russian researchers who have been excavating ancient squirrel burrows may have brought a 32,000-year-old plant back to life.

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

An abandoned mansion is now a haven for urban explorers.

An enormous Soviet aircraft, the only one of its kind, stands at the deserted shore of the Caspian Sea.

A homemade anatomical collection of medical anomalies and accidental catastrophes.

What was once the base for Russia's first nature reserve is now a ghost town, right on the shore of Lake Baikal.

Some of the world's only freshwater seals live in one very special lake in Russia.

A tiny park off the beaten path covered in ingenious scrap metal sculptures.