An abandoned saucer-shaped monument in the Bulgarian mountains.

Oriental bazaar in the heart of Sarajevo.

Bridge that died in war and was resurected.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

This Dutch-styled residential building was originally a cocoa company's World's Fair showpiece.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Cavemen, elephants, and eagles greet passengers driving through the town's main intersection.

Half-size replica of the Taj Mahal.

A fascinating little museum all about the rich history of Peru’s famous plant.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Fifteen Jodhpur queens left their handprints before going to their fiery death.

This stunning 15th-century royal hill fort preserves the age of chivalry in Rajasthan.

A blooming house of worship for the masses.

The maze-like transportation hub contains abandoned areas, derelict stores, and a resident bat colony.