A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

A small flooded ghost town with a few scattered structures remaining.

A museum has some wedding cake dating to the Teddy Roosevelt administration, and some bacon from FDR's.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

A ghost town that held steady longer than most, but finally gave up the ghost.

The largest island on the great salt lake is home to curious creatures and strange stories.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

This geothermal hot spring hides beneath a slowly growing mineral dome.