Places smfallone Wants to Go

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

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

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

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

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

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

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

An exquisite tunnel of cascading flowers.

A magical place that lets you play in and explore the world of Studio Ghibli.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

A huge musical instrument played by the ocean.

World's largest herd of white deer populate a former U.S. Army depot.

The cruel trial of a 13-year-old boy inspired the creation of this now abandoned reformatory.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Underground tunnels remain beneath this abandoned mental asylum.

A layered tribute to the work of mosaicist Isaiah Zagar.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

A massive art collective tries a new take on Brooklyn's DIY music scene—by making it fully legal.

Detailed facade of a brownstone in Boerum Hill.

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