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

One of the largest collections of socialist realist art shows the surprising depth of the official art of the Soviet Union.

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

A former special storage facility for documents during the Cold War.

Museum design and public transportation meet in this unique Russian train car.

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

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

Moscow's imposing monument to the Space Age.

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

This university transit system is a 1970's vision of the future.

Ruins of a historic medical facility sits eerily by the water.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This dramatic rail curve was once the target of a failed Nazi attack.

Chicago’s incendiary role in the labor movement.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

A European-style bath house in Chicago.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

First planned industrial community in the United States.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

This icon of the Atomic Age now lays dormant.

Chicago's museum dedicated to the history of bondage and fetishism is more textbook than titillation.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.