Even Henry David Thoreau found this glacial pothole irresistible.

The final resting place of the man who played the Invisible Man.

The gravestones in this historic cemetery are carved with mysterious faces.

A gravestone marks where a man's lost limb was laid to rest.

Murder scene memorialized in perpetuity by grisly obelisk.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

Site of an escape, ten murders, and some scalpings.

The massive Roman arch in New Hampshire that was meant to be a tomb.

Believed by many to be the oldest surviving public monument in the United States.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

The New England cabin where an infamous British occultist conducted experiments in "magick".

This smiling statue memorializes local cartoonist Bob Montana and his legendary creation.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

A strange, heartwarming, decades-old declaration of love on a New Hampshire roadside.

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.

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

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

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

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

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.

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

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