Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

In Northeastern Iceland lies something of an oxymoron: a steaming desert.

This oceanside Reykjavik spot is speckled with recycled sculptures and large stones.

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

A sulfuric martian landscape that looks far better than it smells.

The largest whale museum in Europe allows visitors to walk among life-size giants.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

An encyclopedic collection of mammal penises.

Rising from the sea like a stone monster.

Staves, storm-calling, and of course, necropants.

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

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

A strange house built only at night, with rumored mystic inspiration.

A hand-built folk art installation covered with messages of God's love.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Its buzzing collection honors vibrator history.

America's most famous piece of self-built architecture.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

World-famous, Pink's still manages to keep its prized cult fetish status.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.