Hundreds of drawings left by the land's previous inhabitants remain mysterious.

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

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.

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

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

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.

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

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.