A Danish fisherman spent 25 years covering nearly every inch of his home with tens of thousands of shells as a gift to his wife.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

An unusual monument to a gentle giant who became a Kyrgyz hero.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

To gaze upon the visage of Sri Lanka's biggest Buddha, one must first pass through the Tunnel of Hell.

One of the largest and oldest caravansaries in Persia.

In this tiny Iranian town playing on the roof isn't just encouraged, it's the only place to go.

Modern-day cave dwellers carve elaborate homes out of volcanic debris.

A gift from the Soviet Union in the 1980s, this is the only statue of the Soviet dictator in Southeast Asia.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The ornate miniature mansions were built for Istanbul's feathered residents.

Some believe this abandoned Brutalist masterpiece inspired George Lucas's Sandcrawler.

Founded in 670, this ancient mosque is an architectural time portal.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

Buddha shrines hide within dark tunnels at this unique forest temple.

A condom-covered Thai restaurant that is more concerned with birth control than food.

The world's second-tallest flagpole stands proud despite dropping rank.

A building facade covered with the statues of 11 giants of Tajik literature.

This interactive museum highlights the history and philosophy of one of the world's most difficult sailing races.