This super steep hike ascends 2,000 feet in less than a mile.

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

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

The largest island on the great salt lake is home to curious creatures and strange stories.

A replica that won't float away.

Come for the speed, leave in love with the desert.

A house carved into a rock in the 1940s.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A small flooded ghost town with a few scattered structures remaining.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

Visitors to this library are in for a real-world education in modernist architecture.

Pyramid home to an obscure religious group that practices modern mummification.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Once known as the Illinois Asylum for the Incurable Insane.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

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