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

A spectacular overlook of the Little Grand Canyon of the San Rafael River, a deep sandstone gorge streaked with orange, red and white in a remote, uncrowded part of Utah.

Dozens of rockets and missiles are on display outside a testing facility in the Utah desert.

This now-abandoned part of the original transcontinental railroad route provides a surreal driving and historical experience.

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

On the Oregon coast is a natural hole that seems to be draining the sea.

The largest wooden building in the world now houses a fascinating collection of aircraft.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

Sip cherry liqueur at a bar dating back to 1840.

A Roman holiday is closer than you think when you use this 1916 staircase inspired by Rome's Piazza di Spagna.

Tacoma's historic Beaux-Arts train station is now a federal courthouse featuring large-scale glass sculptures by artist Dale Chihuly.

This memorial celebrates the legacy of the British-Norwegian resistance movement during World War II.

This elegant arc of a waterfall marks a religious turning point.

A favorite with sightseers and locals alike, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

This former train tunnel is filled with lines from a poem crafted by Robert Louis Stevenson.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

This tower once served as a radar station during the Cold War.

This enigmatic Roman tower lurks just outside Belmonte.

This star-shaped military outpost is now simply trying to protect itself from neglect.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

The founder of a utopian religious community based on the Golden Rule laid his son to rest on this grassy hill.