The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

San Francisco's newly reopened hands-on science museum.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

The private clubhouse for the members of the Academy of Magical Arts.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Every year, festive decorations appear on this juniper tree located in the median strip of a busy highway.

A Saint Nicholas-themed ghost town in the Mojave desert.

A kaleidoscope gallery and steampunk emporium named for a pioneering journalist.

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

Crafted in 1911, this steam locomotive spent its entire working life in Flagstaff.

In 1975, a forestry worker in Arizona claimed to have been abducted by a UFO.

A replica of the flagpole that gave a frontier town its name.

Originally conceived as part of a proposed Arizona State Capitol building in the 1950s, this structure built in 2004 stands as a monument to the architect's legacy.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

The state's only comprehensive museum dedicated to the mineral that defined its history and economy.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

An incredible airplane graveyard sits outside this small museum dedicated to preserving aviation history.

The cinder cone volcano with a less than complimentary name.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.