This fully intact Neoclassical-Greek Revival style firehouse operated until 1938.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

A fine mixture of the old and the new topped with an art deco neon spire.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

Bizarre Cavern.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Remnants of a storybook amusement park hidden behind a strip mall.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Murder scene memorialized in perpetuity by grisly obelisk.

Site of an escape, ten murders, and some scalpings.

The massive Roman arch in New Hampshire that was meant to be a tomb.

A gas station and a state sign commemorating the most famous claims of extraterrestrial abduction.