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

Mysterious 500-year-old tapestries depict a unicorn hunt.

One of only two commuter aerial tramways in the United States.

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

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Turns out you can see the world without ever leaving Maine.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The world's largest rotating world.

The eccentric mansion of one the most popular horror authors of modern times.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

This piece of peacetime naval wreckage memorializes the tragic sinking of the USS Maine--an event which sparked the Spanish-American war.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Monument on the spot where in 1778, Bathsheba Spooner had her husband Joshua killed and dumped down his own well.

Each August, one of the largest religious (and food) celebrations in the country is held in Boston.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

Memorial to a beloved puppeteer as well as all street performers.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."