Despite its name, this route in southern Utah offers a heavenly day trip.

A house carved into a rock in the 1940s.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

The fairy tale castle of the "fairy-tale king."

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

Abandoned railway line circling the city of Paris.

A giant Troll lurks under one of Seattle's oldest bridges.

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

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

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

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

The only completed wing of Utah's first capitol is filled with artifacts and odd stories about its past.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

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

Dig for your own trilobites in this goldmine of invertebrates.

A museum in rural Utah documents the history of the Japanese Americans who were forcibly relocated there.

The last SR-71 ever constructed.

The largest island on the great salt lake is home to curious creatures and strange stories.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

Where a guard killed nine German prisoners during one of the worst 20th-century POW camp massacres in U.S. history.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.