This former coal gasification plant found a curious second life as a popular public park.

The highest point in Washington state is a volcano covered in glaciers.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

A giant Troll lurks under one of Seattle's oldest bridges.

A walk through the historic city center, under the streets of Seattle.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

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

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.

Despite its name, this route in southern Utah offers a heavenly day trip.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

A house carved into a rock in the 1940s.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A cave's rare beauty held a cavernous secret hidden underground.

Legends surround this jagged rock formation in the New Mexico desert.

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

A mistaken marker makes an erroneous claim along the historic Old Divide Road.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

Stairs often replace streets on the steep slopes of this old mining town.

In Tucson a giant metal snake helps pedestrians cross a busy highway.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

This Route 66 classic sports a giant fiberglass rabbit that you can ride.

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

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

Collection of vintage trailers double as hotel rooms.