A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

The Grand Canyon of Texas.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

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

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

A colorful architectural gem in Seattle's uniquely modern Central Library.

A reproduction of earth's many biomes.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Quite simply the largest tree in the world (by volume).

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

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

The ghostly remains of an accidental sea.

A hand-built folk art installation covered with messages of God's love.

Stroll through a wonderland of stupendous moss-covered trees.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

A giant Troll lurks under one of Seattle's oldest bridges.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.