Massive prehistoric mammals used these stones as oversized scratching posts.

The haunting ruins of Jack London's dream house.

Monumental sculptures of Patrick Amiot, constructed from debris, detritus, and determination.

A tribute to one man's legacy of improving the accordion's reputation.

Hand-powered race of alternative forms of transportation.

340 bicycles, 65 feet high.

Believe it or not, this is the final resting place of the man who created the Odditorium.

A tribute to the life and work of the beloved "Peanuts" cartoonist.

This collection of hand fans doubles as a history of femininity.

A huge work of Burning Man-inspired outsider art on the grounds of a California winery.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

A sculptural commentary on capitalism pokes up from the East River.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

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

During the holidays, a vintage subway train whisks New Yorkers back in time.

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

A popular European tradition makes its way to the states on one of America's most famous bridges.

A band of aerialists and circus performers putting on incredible shows in East Williamsburg.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.