Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

Canyon walls shrouded in ferns.

This naturally-sourced hot spring is now home to a clothing-optional resort.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

The angel of death appears to weep black tears at this grave marker.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

An abandoned stretch of highway, deteriorating next to the operational one.

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

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

One part antique store, one part curiosities hodge-podge.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

This woodland architectural installation acts as a camera obscura for the heavens.

A reproduction of earth's many biomes.

A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

A mysterious castle built as a monument to lost love.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Florida might be at its most surreal in this museum devoted to the famed Spanish artist.

Where manatees are the snowbird vacationers in these balmy Florida springs.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

A lush green oasis in the middle of Chicago.

Explore 10 acres of environmental sculptures.