A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

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

This strangely amalgamated museum explores the history of the Timex clock company as well as archaeology.

The headquarters of the famous Yale society.

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

Every plane, auto, and bicycle in this collection is kept in working order and are regularly demonstrated to the public.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

The oldest continuously inhabited street in America.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

Why have you never heard of the second most popular tourist site in New York?

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

A historic recreation of the golden age of the Erie Canal, abandoned for some time, slowly being restored.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

This abandoned ironworks was once the most important military supplier in America.

Eight whimsical acres of metal art.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

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

Collapsing castle on the Hudson river was once the storage site of military surplus business.

Experience the hysteria of a 17th century witch hunt through goofy reenactments and wax dummies that should probably be burned at the stake.

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