This historic church houses the grave of a Scottish soldier who fought in the Battle of Waterloo.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

The Natural History Museum that time forgot.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

Known as the Hintz House, this medieval pharmacy has been an apothecary's haven for nearly 450 years.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

The oldest continuously operating pharmacy in Europe.

Some of the best-preserved specimens of the monumental medieval tombstones found throughout Bosnia and Herzegovina.

The first mosque in the world to receive electricity.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

The place where World War I began.

Oriental bazaar in the heart of Sarajevo.

This historic cemetery was inaccessible for several years due to dozens of land mines.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Two stunning 17th-century libraries and a cabinet of curiosities.

Macabre astrological automaton clock dating to the late 1400s.

The hidden lair of an alchemist rediscovered in a 2002 flood.

A crucified and bearded female saint.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A mocking tribute to the past and modern leadership of Prague.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.