An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A popular swimming hole that hides one of America's most deadly diving spots.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

Setting this massive marionette aflame rids Santa Fe of doom and gloom for another year.

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A beautiful geyser under environmental threat.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The largest self-built castle in the U.S., six decades in the making.

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

This dazzling Buddhist temple was constructed from over one million ceramic tiles salvaged from a British shipwreck.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

An emerald-green grotto just a short trip from Austin.

The first park built over a freeway is a brutalist masterwork.

A wall of chewing gum moonlights as collective art.

A museum dedicated to the history and exploration of both popular music and science fiction.

The famous artist couple lived and worked here, in two different houses separated by a bridge.