A museum devoted entirely to hammers has more than 1,400 items on display dating back to the Romans.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Home to a protest movement, a bombing, and a dramatic change in labor history.

Large one-man sculpture park in Michigan.

"The Most Boring Road in the State."

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

Deep scars on the earth left by the Ice Age.

The only presidential monument to display a late POTUS's actual casket.

This massive airship factory is so large that it has its own indoor weather.

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

An upstate New York garage advertises its services by literally putting the automobile above all else.

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.

The building that inspired Shirley Jackson's "The Haunting of Hill House."

This landmark cemetery in Boston was created more than 300 years ago.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Narrowest house in Boston.

Tragedy on Little Brewster Island memorialized.

Historic Hull Street was actually the first street with a proper name in the Boston area.

A mysterious stone embedded at the base of a historic Boston building.

A former waterfront market is now in the center of town due to some interesting Boston engineering.