Known as the leaning temple, the sacred structure has somehow developed a severe nine-degree slant.

This magical space partly designed by Antoni Gaudi is one of the best examples of romantic gardening in the Mediterranean.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Large Hadron Collider and the Birthplace of World Wide Web.

Someone left a Boeing 737 in a field in southern Bali.

This Japanese-inspired labyrinth of hot springs is hidden in a Chilean forest.

Rebuilt remains of a temple to Roman god Mithras.

The largest geyser field in the southern hemisphere is a spectacular sight.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

An 11th-century fortress home to one of the most influential royal houses in medieval Europe.

Natural history museum displaying a famous taxidermied St. Bernard.

This secret Swiss fortress is disguised as a harmless pink house, complete with fake windows.

Swiss vineyards in a UNESCO heritage site.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

This simple apartment may have inspired some of the most important theories in the history of science.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

Most-visited and most-photographed slot canyon in the American Southwest.

Dramatic river bend surrounds a natural red-rocked pedestal.

Check out engineering marvels of the past at this unintentionally retrofuturist museum.