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

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

The highest bridge in America was built for an almost unnervingly small amount of money.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Canyon walls shrouded in ferns.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

This charmingly homemade amusement park has been growing for 40 years.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

Rare recess caves fill this unbelievably beautiful Ohio park.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A meditative space out of a fantasy story.

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

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Rustic natural hot springs in the deciduous rain forest.

The magic's in the hole!

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

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

A whimsical village of unique treehouses resides in a Washington forest.

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

The largest earthwork effigy in the world.