The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.

This charming stone church on the shore of Lake Tekapo is an icon in astrophotography.

This uniquely shaped slab of volcanic rock has been used by generations of Antarctic explorers.

On a desolate hill overlooking McMurdo Station, a statue of the Virgin Mary stands inside a curved iron frame.

Quite possibly the most isolated bus stop on Earth.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

This building is a recreation of the gatehouse that separated Los Alamos from the outside world during the era of the Manhattan Project.

Referred to as "the crappiest fountain ever," this sculpture has been splashing unknowing passersby since 1969.

Built around 1723, this is the oldest surviving home in the U.S.'s oldest colonial city.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This otherworldly church spire reaches up toward the heavens.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

The Ryerss mansion in Burholme Park now houses a community library and a museum filled with a trove of oddities from around the world.

The hallowed ground of one of the worst atrocities in United States history.

Salina's eye-catching giant mural depicting children at play is painted atop a century-old mill elevator.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

This museum offers an actual time machine back through Colorado's past.

This alpine statue of Jesus in Silverton is said to protect both miners and local economies.

You might recognize this historic Oregon mansion from its appearance in 'The Goonies.'

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

This museum’s collection includes rescued birds, fine art, and a collection of shrunken heads.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).