A somber statue commemorating a Danish merfolk-tale.

An old Danish political institution where members of government can grab a drink off the record.

This ordinary street was made infamous by a legendary visit from the devil.

One of Scandinavia's largest mosaics pays tribute to Danish art and science luminaries.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Once a meeting point for great thinkers, and the midpoint of the country.

Site of the first radio and telephone broadcasting companies in Copenhagen.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

An old bank vault in Atlanta is now the eternal shrine to the King of Rock and Roll.

This Native American petroglyph marks the location of an important, Creek trail.

An ordinary rancher stumbled upon one of the world’s largest collections of Pliocene horse fossils.

At the site of the most dangerous crossings on the Oregon Trail, a museum explores the complex history of westward migration in America.

This U.S. natural reserve is an ancient spiritual place and rock climber’s paradise.

Two geologically young and nearly circular volcanic subsidence craters, each about a half-mile in diameter, abruptly break the nearly featureless Snake River Plain.

This underground cave located in the most barren reaches of Idaho is filled with ice year-round.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

An Egyptian-revival style film house in Boise, Idaho.

Population: three people, two dogs, and one old grouch.

Some 46,000 years ago, a volcanic eruption led to a flooding event that carved this short canyon with steep vertical walls.

Star garnets are so rare that you can only find them in two places on Earth—here, you can dig for them.

This Idaho state park boasts the tallest single-structured sand dune in North America.

Idaho’s largest, deepest limestone cave is known for its quirky rock formations and bat population.

This cemetery is one of the last remaining traces of a drowned old Western town.

A metal menagerie fills the yard of this museum and gallery, the work of Montana artist Bill Ohrmann.