An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

This quirky curiosity shop takes its cues from the world's bazaars.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

The oldest surviving synagogue in New York City is now a soaring art space.

Explore 10 acres of environmental sculptures.

A modern mechanical planetary system, part of a 10,000 year clock.

This former lieutenant governor's home is brimming with curiosities.

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

A spiritual retreat in the heart of Los Angeles offers stunning gardens and a labyrinth to lose yourself in.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Canyon walls shrouded in ferns.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

New Orleans' famous cemetery, located on the site of a former race track.

See massive fossils that are over 200 million years old in northeastern Arizona.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

Rustic natural hot springs in the deciduous rain forest.

A reproduction of earth's many biomes.

This geothermal hot spring hides beneath a slowly growing mineral dome.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.