This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

An encyclopedic collection of mammal penises.

An unassuming secret door once led to a legendary watering hole.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A library and shop devoted to the body, mortality, and bringing to light forgotten or neglected histories

This university transit system is a 1970's vision of the future.

Where religious effigies, magic soaps, and occult candles are brought to customers at wholesale prices.

A regular looking rock with an unbelievable history.

Explore 10 acres of environmental sculptures.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

A music-filled, booze-soaked oasis in the desert.

A fake town founded by Western movie stars is now becoming a hip desert community.

Hundreds of antique bank vault locks on display in New York City.

The world's oldest hologram gallery and the labyrinthine laser laboratory of a holography pioneer.

Elevated freight railway turned wildly successful urban park.

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

The world’s first penitentiary, meant to be humane, drove men insane.

The site of the climactic scene from the classic horror film is now a historic landmark.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Two insane asylum bodies embalmed by an amateur.