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 only remaining historic maritime signal station in the United States.

The National Park Service’s best-kept secret with views that rival any in D.C.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

This stimulating sex toy museum is sure to arouse the interest of its visitors.

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

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Books you don’t need in a place you can’t find.

Millions of years of oxidation make a drive down this winding Death Valley road surprisingly colorful.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

"Only the devil could play golf here."

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

In 1958, an MIT fraternity pledge laid down on this bridge and instituted a new, unique unit of measurement.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

The site of Paul Revere's historic two lantern warning.

The oldest working bell set in North America, the bells at Old North Church sat silent for their first four years in Massachusetts.

Millions of numbers carved in glass represent the tattoos forced upon victims.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.