One of the best examples of a Byzantine period monument in Albania.

Gigantic water vessel, permanently grounded in Southern Albania.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

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

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

A naturally beautiful, seemingly bottomless deep blue spring.

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

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.

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

A Portuguese museum display features a bizarre assortment of objects.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

This giant sculpture made of trash is a critique of society's wastefulness.

Eat the ultimate iteration of Portugal's most beloved pastry.

A hidden three-foot-wide house separates these two regal churches.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

Delhi's only female ruler is buried in this neglected, forgotten tomb.

Visit a haunted Mughal mosque and the tomb of a Sufi saint and his disciple.

India's first open-air public art district sits in the heart of the country's capital.