Rent out a glass igloo to watch the Northern Lights like you live in the future.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

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

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

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

This giant boulder is pinched over a 1000-meter abyss by two mountains.

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

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

A fantastic castle rumored to be the birthplace of King Arthur.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

Walk 2,300 feet above the ground on the "Troll's Tongue."

The atmospheric road was never meant to be so creepy.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Northern Ireland's Brobdingnagian stepping stones.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

World's largest collection of serial killer artwork and other macabre exhibits.

The rocks in this arid basin leave trails of movement behind them.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

An emerald-green grotto just a short trip from Austin.