Columbus' failed colony in the New World.

The first hospital in the New World.

Built in 1512, the oldest cathedral in the Americas.

This trio of Dominican cave lakes comprise a colorful biosphere of natural life.

Just off the road outside Baguio, a gigantic lion's head carved into a mountain greets those driving by.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

The cavern’s main chamber is so vast that the Statue of Liberty could reportedly fit inside it.

A stubborn Ottoman tower with a punishing climb and a view over Eger

A volcanic spur of Lake Tahoe wrapped in Washoe sacred stories and road tunnels

The peace and seclusion of Kyoto’s “Moss Temple” is no accident.

Luxurious hotel designed to stir the imagination of its many visitors.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

A sleepy little town that had the greatest landslide in North American history fall on it.

Historic site where Native American hunters once trapped and killed buffalo.

Christ's blood allegedly preserved in a Belgian town.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Actually this "ancient" way of fishing may have started as recently as WW2

A life-sized imperial army, buried in battle formation, has stood underground for over 2,000 years—built not for war, but for eternity.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

This unique footbridge stands out among the surrounding buildings, and is a popular filming and photography spot.

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

The largest Commonwealth memorial to the missing and dead of the Battle of the Somme.

This massive and complex stone tower is a great example of the many pre-historic nuraghes on the island.