One of the world's largest collections of pharmaceutical artifacts.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

This charming old building's loose connection with the Scottish Reformer is what saved it from demolition after it split apart.

The world’s first museum dedicated to the history of childhood opened in Edinburgh in 1955.

The headquarters of one of the world’s longest-running humor magazines bears a noticeable resemblance to a head wearing a Prussian helmet.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

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

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

A unique columnar residence built in the 19th century.

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

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

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The massive machine creates cracking displays of indoor lightning.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

A humble garage, world-famous for being the epicenter of a technology revolution.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

The highest point in the state of New Hampshire, and while unlikely "the worst weather in the world," it sure seems that way to hikers.

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

This 19th century train workshop is a treasure trove of railroad history.

No one messes with the Massachusetts sacred cod, not this time...

A tiny survivor of the Donner Party disaster.

The California capital city once stood 10 feet lower than it does today.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.