An easy-to-miss garden in Boston's North End honors the mother of JFK and others who lost children in WWII.

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

Narrowest house in Boston.

This parking garage was the site of what was - at the time - the largest cash robbery in history.

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

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

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

"Try not to knock anything over!"

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

An eccentric inventor's castle home with its own indoor weather system.

Friction between grains of sand cause a curious "singing" sound.

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

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

This mural celebrates the early integration of a New Hampshire baseball team.

Founded by the famed children's book artist, this museum spreads an appreciation of the arts through picture books.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

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

Two mermen, eternally spitting into each other's mouths.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Hidden for 165 years inside a building designed by Thomas Jefferson are the remains of what may be America's first educational chemistry lab.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.