A heavenly experience, right here on Terra Firma.

Hollowed out cedar log tubs set in an ancient towering forest.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Home of an evil witch famous within southern folklore.

A beautiful geyser under environmental threat.

A hip bar decorated with walls of golden skulls.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Mysterious rocks that ring musically when struck.

A semi-scholarly approach to sex.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

The first declared National Monument in the United States.

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

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

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

Order scoops of pandan, lychee, and black sesame at this family-run institution.

Enormous lake at the bottom of a unique cave system.

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

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

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

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

America's most famous piece of self-built architecture.

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