Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A fairy tale castle in modern Rome.

The yawning maw of this pagan visage is said to bite off the hands of liars.

These "anatomical machines" are only one of the many strange items in this Italian crypt.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

An old slave lookout in Cuba's historic sugar cane fields.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

Ha Long Bay's "Cave of Surprises" houses a popular phallic rock formation.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

An extravagant monument to an extravagantly unpopular Emperor.

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

An ancient capital city that dates back 3,000 years old and harbors many surprises.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Source for a sizable portion of Egypt's freshwater supply is more than an optical illusion.