Not quite the menace it once was, this monster still has some chops.

Derelict airplane bodies serve as both home and income for three Thai families.

The caldera of this mini-volcano has been turned into a naturally heated mud bath.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

This golden temple is surrounded by hundreds of stone tablets that comprise the "world's largest book."

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

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

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

Sacred waters rescued from the wrath of a volcano.

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

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

A museum dedicated to the alleged Roswell Incident.