If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Come crisp December nights, this fairly plain neighborhood becomes a holiday dream world.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

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

Burping, gurgling geothermal mud pots by the Salton Sea.

Huge otherworldly domed rocks on the shore of a deadly lake.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An enormous illuminated figure dances on the Las Vegas strip.

A man-made island in scenic San Francisco Bay.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A modern mechanical planetary system, part of a 10,000 year clock.

A hands-off space for graffiti artists to hone and display their skills.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A psychedelic labyrinth on the San Francisco bay.

In one Santa Monica parking lot a mushroom cloud made of chains heralds a message of peace.

An essential stop before plundering, BYO Cutlass.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

Giant origami crease patterns engraved in Santa Monica intersections may even be visible from space.

This plaza at the end of the world teems with monumental tributes to a problematic history, and laser discs.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.