A real-life "hobbit" cave in Flores, Indonesia.

Once home to Komodo dragons, this island dreamscape has a rare combination of white, pink, and black sand beaches.

A sprawling nature preserve harbors the world's only living dragons.

This underwater sculpture park is the basis for a manmade coral reef.

One of the largest bamboo bridges in Asia, located right next to a bamboo school.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

This tiny lake temple dedicated to a water goddess seems to float on the surface.

This massive chapel in the middle of the Indonesian forest is both haunting and fowl.

Subterranean place of worship in Indonesia.

In this rare traditional factory, three generations of know-how, several strong cows, and a one-ton mortar come together to make Yogyakarta's famous "ugly noodles."

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

The meaning behind this triumphal Roman arch was a mystery until the early 20th century.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A favorite haunt of Delhi's politicos and intellectuals, this old-school coffee shop was shut down under Indira Gandhi's Emergency.

A beautiful but toxic fountain of mercury.

Legends surround an ancient tree trunk riddled with nails for good luck.

A spherical "micro-nation" in the heart of Vienna.

Macabre museum devoted to historical Viennese murders.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Though they've since been renamed, these two streets hint at Dublin's darker days.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.