A miniature rainforest is growing inside of a Midtown Manhattan office building.

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

A layered tribute to the work of mosaicist Isaiah Zagar.

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

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

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

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

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

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

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

World's largest collection of serial killer artwork and other macabre exhibits.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

A unique botanical garden housed in three giant geodesic domes.

"Iron Age" creatures fill this huckster's rusted metal sculpture garden.

This striking art museum holds an amazing series of curiosity cabinets.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

The subtle science of a master molecular gastronomist.

A hollow cement depiction of time's inexorable effect on the human body.

A lush green oasis in the middle of Chicago.