The United States's largest hand-dug well is topped with a state-of-the-art museum.

More than 7,000 gallons of water pour over these cascading red quartzite waterfalls every second.

A striking sculpture built to honor the women of the Lakota and Dakota Nations.

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

The pharmacy's retro ice cream mixer is one of the last of its kind.

A monument to the center of the North American continent may be off by a few miles.

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

One man's quest to save his town with a trail of record-breaking sculptures.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

An entire city block built completely out of petrified wood.

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

This curiosity shop contains a museum filled with bizarre, unique objects.

Giant telescope mirrors built in a spinning furnace under a college football stadium.

From working out of his garage to the James Beard semifinals, one Tucson baker has kept his fan base—and his grains—local.

A cabinet of curious mathematical models and old calculators.

The biggest solar telescope in the world helps reveal the secrets of our sun.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A Tucson museum and performance space full of found-object movable sculptures.

The Magical World of George Phar Legler.

$10,000 won in a poker game in 1884 allowed James Draughon to build this intriguing home.

Roadside attraction with more than 1,000 stuffed and mounted animal skins displayed in simulated natural habitats with hand-painted backdrops.