A collection of pianos and more guaranteed to delight anyone interested in music history.

A 115-year-old restored German dining hall awaits those who venture beneath the Minnesota State Capitol.

Admire the art and then buy a raccoon skull cleaned by flesh-eating beetles.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

Every president in history is immortalized in bronze in downtown Rapid City.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

If astronomy had a ghost, it would look like this observatory.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

Display that gathers the basic elements of the universe in one convenient location.

One of the largest collections of merchandise from the famous British sci-fi show can be found smack in the middle of Indiana.

A steaming, boiling hellscape sources Hokkaido's thermal baths.