The highest bridge in America was built for an almost unnervingly small amount of money.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A limestone wonderland of water and subterranean secrets.

Six times a day a train runs right through the middle of this Thai street market, sending vendors scrambling.

An enormous Buddha peers through a gap in its ruined chamber.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A mosaic-tiled house built by graveyard sweeper Raymond Isidore.

Since ancient times these picturesque springs have been providing bathers with healing waters.

The ghostly remains of what was once the world's richest copper mine.

The explorer Captain Cook may have named it White Island, but the Maori call it Te Puia o Whakaari – The Dramatic Volcano.

The oldest church in Iceland is one of the few to feature ornate decoration.

Monasteries on rock pillars, once accessible only by frayed ropes.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

Where the Great Wall of China meets the sea.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The house where Good Will Hunting was written is a surreal fairytale abode.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

The show's fictional Korean medical camp was created in the Santa Monica hills.

An easy to overlook storefront hides some of the most authentic and regionally diverse Chinese food in New York.

Roman ruins top white travertine terraces formed by ancient hot springs.

A marvel of Byzantine engineering under the streets of Istanbul.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

In this historic region, homes and churches are carved into ancient volcanic rock formations.