Seoul amusement park boasts a Korean-speaking pachyderm.

Upside-down trees serve as natural flower pots in this hanging garden of Alaska.

An underwater city for the dead.

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

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

A Circus legend leaves an unexpected endowment.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

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

A 120-year-old legend concerning an empty circular patch in the North Carolina woods.

The world's largest model of our planetary system.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

A sculpture of a giant hand reaches for the stars in the middle of the Atacama desert.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

Medical history museum featuring a lovely doctor's office from the 1800s.

A mysterious light of unknown origin on the backroads of Missouri.

One of the best collections of wax anatomical models in the world.

A seemingly endless landscape of pure salt stretches far across Bolivia.

This "mathematical tower" was an observatory, early skyscraper, and place to reflect on all of nature and the cosmos.

The Origin of On the Origin of Species.

A museum within a museum, devoted to history's most questionable medical devices.

Handsomely crafted representations of our round planet.

A natural history museum with an extensive collection of bird dioramas.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.