The first American department store, and home to the largest operating musical instrument in the world.

Mysterious rocks that ring musically when struck.

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.

Stay at this storybook estate, featuring Sir Henry Hudson Kitson's masterpiece "Gingerbread House."

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A decidedly out of place statue memorializes the Blues Brothers characters at this water bottling plant.

Trinkets and toys lovingly handmade by maximum security prisoners.

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

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

The world's largest rotating world.

This tiny patch of arid sand sits in one of the greenest states in the United States.

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

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

A collection of full-size movie monsters opened to the public.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Hot Doug's "Hot Dog" Stand.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

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

Man-made geyser that rises to the exact height of the Gateway Arch.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

To find the "unicorns of the deep" you've got to go downstairs.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.