The only freestanding table rock formation east of the Mississippi.

These tall, red sandstone pinnacles outside Moab are often forgotten amid their more famous neighbors.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

This roadside stop between Goblin Valley is the perfect location to view some of the region's natural wonders.

It's safe—and permitted—to walk across these twin natural sandstone arches.

An empty mine that some believe will suddenly be filled with fortune and treasures at the end of the world.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

A dazzling display of red rocks weathered into spires and hoodoos.

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

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

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

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

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

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

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

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

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.

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

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

An unnatural lake in a naturally beautiful setting.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

This small fort played a huge role defending Puerto Rico’s capital city.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.