One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

One of the now-less-hidden floral gems of the "Emerald Necklace."

Reverend Jen's unique museum/living room showcases her troll collection.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

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

Lie in a hammock where George Washington stood.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

A wunderkammer hidden on the top floor of the Hartford statehouse.

Shop of curiosities with a dinosaur museum tucked in its basement.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The "Seinfeld" diner.

Ride the subways of yesteryear.

The intriguing personal collection of a professional demon-chaser.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A hands-on traveling collection of the innovative devices of yesteryear.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

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