One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

This headstone marks the grave of an 11-year-old boy killed during clashes in the streets over the boycotting of British goods.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Dedicated to one of the darkest moments in Irish history.

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

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

This statue intended for children to enjoy became a minor political spat.

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Stolen goods adorn the organ at Old North Church.

Narrowest house in Boston.

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

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

A full-service gas station known as the oldest in America.

This dramatic rail curve was once the target of a failed Nazi attack.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Behold the rickety glory of one of the oldest roller coasters still standing.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Built by the patriotic residents of Boonsboro in a single day.

Bizarre Cavern.

The birthplace of the Herndon Gas Company.

One of the oldest standing structures in Montgomery County, Maryland.

The last early 20th-century schoolhouse in Fairfax County has galvanized the community and engendered a spirit of service among residents.