"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."

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

The only remaining place where you can play this century-old game for cash.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

A cave dug by a man directed by ghosts to find pirate treasure.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

Once the largest public hospital for the mentally ill was also surrounded by controversy.

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

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

This unassuming stone commemorates a condiment factory gone up in smoke.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

The bears may be gone, but their old cages can still be found.

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

America’s oldest community theater, this Boston club has been in operation since 1877.

Final resting place of the author who wrote the ghost story "The Turn of the Screw," and his brother, the Harvard doctor and paranormal investigator.

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

One of America's most historic homes also holds a startling literary legacy.

From bench to vandalism to art, this silly prank seat was funny enough to become permanent.

A unique columnar residence built in the 19th century.

This hidden labyrinth offers walkers some brief peace of mind.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

This massive World War II calculator hearkens back to the days when "computer" was a job title.

The 1920s child prodigy author was last seen here at her Brookline home before vanishing at age 25.

This nearly endless university hallway is home to a unique sunset known as "MIThenge."