One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Iceland's largest lagoon is home to stunning multi-colored icebergs.

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

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

The drama of nature in full effect in this Nevada State Park.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

Colorful sand dunes create a unique attraction in this part of Utah's red-rock country.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

Walk through the sets of old western films at this small museum in Utah.

Most-visited and most-photographed slot canyon in the American Southwest.

This unique art installation used boiler tubes from a decommissioned power plant to resemble Antelope Canyon.

A sharp bend in a dramatic river canyon cut through red rocks.

A spiritual vortex among the red rocks in Sedona.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

An 1870s ranch for pioneers, rodeo stars, and divorcees was abandoned and left for dead, until the city reopened it for exploration.

A wedding chapel, vintage clothing shop, and bar all under one roof.

A little-visited waterfall in an otherworldly landscape.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The 16th-century church has the only stained glass windows that survived the Scottish Reformation intact.

A sweet symbol marks the place where torturous executions were once carried out.

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

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.