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.

An emerald-green grotto just a short trip from Austin.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

Rippling sand dunes frozen in the Arizona rock.

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

This popular Boston haunt is reminiscent of a time gone by, when slow cafes and sweet-smelling smoke wafting from patios was the norm.

These whimsical works of art tell the story of the city's past and present.

The Boston square dedicated to the dark poet who was born nearby.

This uninhabited island in Maine is home to various works of art left by visitors over the years.

The eccentric mansion of one the most popular horror authors of modern times.

Why settle for barbecue chips when you can get actual barbecue?

A unique blue and yellow phone booth in America's "Little Sweden."

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.

These elevated trucks were put in place as a middle finger to The Man, but are now considered folk art.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

This mansion was made famous by its colorful cast of owners and location along the Sante Fe Trail.

A sculpture of a giant man escaping from the depths of the Earth.

A remarkably opulent mansion with a tragic history.

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

This mosaic-covered bar is brimming with curated curios.