The homestead of American patriot John Adams.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The ruins of one of the first railroads in the U.S. lie hidden within a neighborhood cul-de-sac.

This art display in Dedham honors a local fish, and is dedicated to the volunteers who restored the canal.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

The world's largest piece of copyrighted artwork.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

Second largest wastewater treatment plant in the country.

A very big rock just plopped down in the New England woods.

No one really knows how these old hobby horses got here, but the herd keeps growing.

Even Henry David Thoreau found this glacial pothole irresistible.

The Old Man of the Mountain’s less-famous, but still beloved little brother is said to resemble a leader of the Abenaki tribe.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

This folk art dinosaur was almost pushed to extinction due to lack of a building permit.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A collection of full-size movie monsters opened to the public.

The Boston square dedicated to the dark poet who was born nearby.

This memorial garden is the final resting place of many beloved pets including that of a famous explorer.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

This large cemetery is known as the museum of granite sculptures.