A self-built castle made by a mysterious man.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

A historic hydroelectric power plant serves as the unusual backdrop for a public park.

Someone really, really wanted to save this fast-food icon from demolition.

Try the frozen treat that inspired Arrested Development's famous banana stand.

The stone-covered graves lie within the ruins of an Old West ghost town.

A former hardware store near Yerba Buena is the official home of California's history.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

An amazing collection of fantastic reptiles, amphibians, spiders, and insects.

Over a century old, this restored Victorian building is surrounded by a lush garden filled with rare palms.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

This coffee shop lies hidden beneath a historic church.

A geological mystery on Camelback Mountain.

This rustic cabin, outfitted with gun slits, was once home to John D. Tewksbury, patriarch of the bloodiest family feud in American history.

Once disputed as the largest sundial in the world.

A museum and tribute to a brave profession.

The unusual burial monument of Arizona's first governor.

Every Christmas, one Arizona city makes the most of its dry climate by creating an arid desert tannenbaum.

A $100,000 tumbleweed decorates an Arizona park and ride that got its priorities a bit tangled.

Everyone's invited to put on a miniature concert with this world-class musical wonder.

The city is full of whimsical portals to another world.

Trade in that pesky human soul for cold-hard circuits.

Its floors are marked by colorful cues depicting Michigan's native fauna.