A botanically themed auditorium blooms within the world’s last operating double-decker theater.

The stone-covered graves lie within the ruins of an Old West ghost town.

Crumbling pink walls and murder memorials preserve the pioneer history of Joshua Tree.

An old California photo stand has been turned into a shrine to the cozy art of crochet.

Home of an evil witch famous within southern folklore.

Odd outsider art installations surround a Gold Rush-era ghost town.

The first declared National Monument in the United States.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The final resting place of New Orleans' most famous voodoo priestess.

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

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

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

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

The only structure left with direct ties to the Salem witchcraft trials of 1692.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

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

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

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

A crumbling hospital from the 1850s on Roosevelt Island.

World's first "penitentiary," meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.