Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

The world's longest known cave system.

A beautiful geyser under environmental threat.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

The first declared National Monument in the United States.

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

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

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

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Take a drunken tour inside the world's largest known geode.