Tucked away down this Baytown alley exists a one-of-a-kind art exhibit of technicolor umbrellas.

Nestled in the heart of a Texas town is a dreamy secret garden dating back to the 1940s.

A swamp and garden tour featuring local wildlife and exotic botanical specimens from around the world.

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

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

A bizarre house filled with an astounding array of collections.

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

A theme park that suffered massive flooding during Katrina was abandoned, and now proves irresistible to trespassing explorers.

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

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A 140-year-old castle with underground caves hidden in San Francisco.

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

A snapshot of the city's fascinating voodoo culture.

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

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

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

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

Rippling sand dunes frozen in the Arizona rock.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

An auroral research program that superheats the ionosphere.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.