One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

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

Guns that have been defending San Francisco since 1904.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A miniature village mimics the surrounding buildings so well it includes itself.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

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

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.

The fifth-longest natural arch in the world, and the longest outside China.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

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

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

Largest collection of mounted dinosaur specimens in the world.

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

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

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

This geothermal hot spring hides beneath a slowly growing mineral dome.

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

The southernmost outpost of the Russian Empire in colonial America.

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