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

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

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

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

This golf ball–shaped former desert real estate office now houses a UFO museum.

A Saint Nicholas-themed ghost town in the Mojave desert.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

Formerly frequented by Hollywood stars and now open for tours.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."

The home of one of California's most important horticulturalists wilts amidst a lovely park.

At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.

Rusty industrial city full of oxidized distillation towers.

The site of Austria's biggest concentration camp now honors its victims.

This well-traveled chess park offers scenic views of the pacific and a colorful, eclectic clientele.

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.

Because there's no place like home.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The celebrated eyesore created by starry-eyed sweethearts.

This monster board rode a monster wave to break two world records.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

This large collection of tiny things revels in the art of fine machinery well made.