The oldest house in Galena, Illinois, now is a reminder of when this city was the world's lead mining capital.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

Explore the wide world of desert plants at this unique Palm Springs botanical garden.

The exterior of this home was used for the hit television show, The Brady Bunch.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

This spectacular track has run continuously since 1882.

These aggressively sustainable art homes look like something out of 1970's science fiction.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

A natural formation that resembles a camel resting in the New Mexico desert.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This quirky hot springs town known to locals as "T or C" was named after a radio show.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

The oldest continuously occupied public building in the United States.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

America's smallest town is run by its single citizen/mayor/librarian/bartender.

This Nebraska town wants to double its population with plywood cut-outs of townsfolk.

This opulent Pueblo Deco movie palace melds Art Deco and Native American motifs.

A sculpture of a flying hawk made from colorful car doors.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.