These pretty kitties killed and ate as many as 135 railway workers.

After sunset the heart of Zanzibar's historic Stone Town neighborhood transforms into a culinary playground.

A pocket of jungle amidst urban expansion in Panama.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

This spectacular track has run continuously since 1882.

Two volcanic lakes in an enormous crater formed in a prehistoric eruption.

Medicinal spa created with the discharge from a geothermal energy plant.

Iceland's largest geothermal mud pool is a little bit haunted and a little bit dangerous.

Three columns of volcanic rock shoot out of the ocean.

Iceland's largest lagoon is home to stunning multi-colored icebergs.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

A whimsical, punny collection of "fence art" outside the tiny mountain town of Baker, Nevada.

Come for the speed, leave in love with the desert.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

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

A shady solar power system that couldn't hold up to the harsh desert conditions.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.