The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

A fiery crater has been burning in the Karakum Desert since 1971.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A terrific purveyor of natural history objects and curios.

The "original web site," this farm in Northern Vermont encourages orb-weaver spiders to build their daily webs, and then sells the preserved masterpieces.

The latest in a series of long glass bridges suspended at terrifying heights.

At nearly 1,000 feet long, this astonishing glass suspension bridge is one of the longest in the world.

Unusual outdoor collection of sculptures.

A Chinese mining company has created the world's first cloned village in this perfect recreation of an Austrian town.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

An acoustic anomaly with a mysterious cause.

The knock-off oil painting capital of the world.

A biblically accurate ark located beneath a Hong Kong bridge is fun for the whole Christian family.