Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A bizarre roadside attraction and the first instance of miniature golf in the world.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

This bridge is haunted by the ghost of a distraught mother.

Ornate limestone building now filled with geologic specimens, and more.

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

Where beautiful signs live on forever.

An abandoned relic of the city's failed experiment with below ground transit.

One of the few surviving "Wigwam"-themed motels.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.