This once-forgotten oasis in the middle of Lisbon was first created over a century ago quite by accident.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

A small museum in Newfoundland is home to a 227-foot tapestry that preserves the remote region's colorful history.

From grand battles to daily life, this Spanish museum offers a view of world history in miniature.

Stolen goods adorn the organ at Old North Church.

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

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

One of the indelible moments of the American Revolution took place at this location.

The oldest Italian café in Boston, this spot also serves as a veritable museum of vintage coffee ephemera.

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

This historic patch of real estate offers a glimpse of colonial Boston.

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

Located in Faneuil Hall, the headquarters of the Ancient and Honorable Artillery Company of Massachusetts has stood the test of time.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

A tiny plaque marks the location of the water source that facilitated the birth of modern-day Boston.

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

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

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

A more than 260-year-old crypt built on Boston's oldest English burial ground.

The Boston home of a conductor on the Underground Railroad.

Former home of an abolitionist couple who escaped slavery and established the most active Underground Railroad stop in Boston.

A plaque marking the famous abolitionist's birthplace often overlooked by visitors to the nearby Charles Sumner House.

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