This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

The first declared National Monument in the United States.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

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

South Dakota's oldest operating brewery is housed inside a historic firehouse.

A fitting attraction for the corn capital of the world.

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

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

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

These former Cold War launch sites have been preserved for tourists to see where the button might have been pushed.

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

An old town theater converted into a celebration of the hobo legacy.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A bizarre house filled with an astounding array of collections.

This striking art museum holds an amazing series of curiosity cabinets.

The 25th President's marble casket can be visited in this classical Ohio tomb.