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

Explore 10 acres of environmental sculptures.

Huge otherworldly domed rocks on the shore of a deadly lake.

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

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

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

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

Over 50 historic windmills whir away at this outdoor museum.

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

Erosion and time have created a naturally-formed water park.

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

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The largest self-built castle in the U.S., six decades in the making.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

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

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

One artist's yard is full of shining, whirling kinetic sculptures that look like pure steel psychedelia.

340 bicycles, 65 feet high.

Successful artist residence program has filled this ranch with dozens of sculptures over the years.