This woodland architectural installation acts as a camera obscura for the heavens.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

The largest earthwork effigy in the world.

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

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

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A beautiful 62-acre Catholic shrine and botanical garden.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

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

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

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Stroll through a wonderland of stupendous moss-covered trees.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Shop selling 500 flavors of soda has something for everyone.

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

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

A Tibetan Temple and Buddhist organization just off the beaten path in Northern California.

A giant sculpture dedicated to a staple of South Bend food culture.

This quiet neighborhood is also home to a 700-ton rock transported by the last Ice Age.

People come from across the globe to swim in this lake believed to have healing properties.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

This three-story antique market and curiosity emporium claims to be "the largest singly owned antique shop in the Pacific Northwest."