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

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

There are eight natural springs around town, each with a slightly different taste.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

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

Step into the cool deep past and unknown future of who begat who.

This plaque marks the site where the penultimate chapter in the journey of two doomed boys unfolded in an imagined parallel universe.

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

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.