The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

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

An ancient wall in the shadows of the Amber Castle.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

A small town in Rajasthan has been dubbed the "City of Stepwells," and Raniji ki Baori is the queen.

A complex of six forts embedded in the Rajasthan hills.

The evocative ruins of a 1,000-year-old hill fort lie within a popular tiger reserve.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

A small 12th-century temple surrounded by waters believed to have curative properties.

A battle between nature and architecture in the Cambodian jungle.

Though it was originally dedicated to the Hindu god Shiva, Baphuon was converted to a Buddhist temple in the 15th century, complete with a massive hidden statue.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

"Drunken ship" sculpture memorializing the French poet in the city where he died.

This folk museum is devoted to small figurines of provincial village life.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Invisible bridge parts the waters, invoking biblical images and preserving the ominous feel of an ancient moat.

The 20-mile causeway that separates the Netherlands from the sea.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.