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

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

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

Largest man-made excavation on earth!

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.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

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.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

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

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

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

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."

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

A house carved into a rock in the 1940s.

Fifty years after a “blast blasted blubber beyond all believable bounds,” this idyllic natural area commemorates the carnage.

The largest wooden building in the world now houses a fascinating collection of aircraft.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

Two massive rock outcroppings on the Oregon coastline.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

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