According to legend, Bob Dylan sneaks in twice a year to eat dinner with Jack.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Trash escaped from a landfill to fill beaches with all kinds of treasure.

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

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

This Massachusetts home was the first to have a telephone line and its own phone number: 1.

The classic Christmas carol was written at this Massachusetts tavern in 1850.

A $100,000 tumbleweed decorates an Arizona park and ride that got its priorities a bit tangled.

Sloth rehabilitation center in the jungle of Costa Rica.

A secret climbing tree hides along the side of a Costa Rican road.

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

This Costa Rican topiary park is a surreal garden of unearthly delights.

Years of archaeology, just chillin' by the water cooler.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A winding path built in secret on the edge of the continent.