Third time's a charm, or in this case, two testicles are.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The secret medieval communication system will whisk your words above the noise of the crowd.

One of the now-less-hidden floral gems of the "Emerald Necklace."

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

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

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

Tragedy on Little Brewster Island memorialized.

Narrowest house in Boston.

This landmark cemetery in Boston was created more than 300 years ago.

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

A centuries-old church stands as a testament to Boston's "father of architecture."

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

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

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

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

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

Dedicated to one of the darkest moments in Irish history.

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

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

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 a colonial woman who was hanged for being a Quaker.

This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.