This underground oasis is one of North America’s most fascinating prehistoric places—and you can scuba dive in it.

This kitschy curio wonderland is full of fake animals, teak tables, and a cacophony of random bric-a-brac.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

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

This decrepit abandoned building is made all the more eerie by its dark history.

Home to the Titanic Historical Society's collection.

The first keystone arch railroad bridges constructed in America.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

A unique work of art that was created without permission.

Dedicated in 1895, this is the world's first tribute to the hardworking newspaper delivery boy.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

The mansion home of author Edith Wharton.

A stunning garden filled with fantastical environmental folk art and sculptures.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.

The home of an antique carousel still in operation.

This site commemorates the birthplace of the game of basketball, invented by James Naismith in the winter of 1891.

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

This exhibit is devoted to the games and wonder that Hasbro has brought children worldwide.

The largest collection of historic military firearms in the United States.

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

This 15-foot-tall sculpture stands vigil at the back entrance to the largest public park in western Massachusetts.

The final resting place of a wealthy landowner who helped create the largest public park in Western Massachusetts.

Who knew the Devil's domain was a hot spot for tubing?