A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

This historic national park is covered in the stunning ruins of red rock pueblos.

See massive fossils that are over 200 million years old in northeastern Arizona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Ethereal alien hums and haunting whale songs emitting from...a giant sheet of vibrating metal?

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

This museum of miniature displays provides a journey through early American history.

This tombstone marks the final resting place of the beloved 1990's character, Ernest P. Worrell.

A full-scale replica of a 1774 colonial settlement in Kentucky.

Three courses accompanied by Christian rock.

An enormous goose sits atop this nest-shaped home.

Amazing taxidermy dioramas from the 1960s in a cement building meant to look like an ice cave.

Unique tower has outlasted a takeover of the company.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

One of the few surviving "Wigwam"-themed motels.

Moonbows over Kentucky.

The world's longest known cave system.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.