Cathedral carved out of salt, located a mile below the earth's surface.

This former rail stop in Utah was abandoned, repopulated by some nostalgic friends, and now is home to a single DIY aviator who lives in a hangar.

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

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

Once considered a marvel of engineering, there are now doubts about the structural integrity of this 5.4-mile cable-stayed bridge.

This unofficial museum details the rise and fall of Colombia's most notorious narcotrafficker, Pablo Escobar.