A monument in a town outside of Boston celebrates the visits of Edgar Allan Poe.

The site of the first "historically true" UFO encounter in the U.S.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

The world's oldest and largest museum of mass transit vehicles.

This picturesque abandoned home is rumored to be a spite house.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

A former zoo turned public park, where visitors can hang out in the old animal cages.

America's oldest archaeological site or a muddled case of wishful thinking.

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

Former abode of notable poet, complete with literary references and stories of ghosts.

This modern medieval weapon of war was built to toss pumpkins.

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

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

This riverfront statue honors the inventor of the first video games ever sold.

Murder scene memorialized in perpetuity by grisly obelisk.