Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

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

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

Yugoslavia's biggest underground airport lies in ruins.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

A museum in rural Queensland wrongly claims that dinosaur fossils possess evidence that the earth is only 10,000 years old.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

Christ's blood preserved in a Belgian town.

This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

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

The tallest hotel in Europe.

Former headquarters of the KGB.

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

Stalinist skyscraper built with help of cryotechnology.

Moscow's imposing monument to the Space Age.

An iconic Soviet statue of working-class people.

A prehistoric route that has claimed many victims is now closed to traffic.

These pillars are one of the few remnants from the mysterious lost empire of Makuria.

Six paintings reminding you that death is integral part of everyday life.

A somber memorial honors the hundreds of thousands of lives lost at this labor and extermination camp.

Built to transport German U-boats through the never-completed Masurian Canal, the locks near this Polish village are now home to a rope course.

The only residents of this abandoned housing development full of identical castles are stray cats and dogs.