Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

A safe space and resource for anything and everything relating to sex and sexuality.

A railroad magnate's replica village has become home to a genetic seed bank for rare breeds of livestock.

This fairy tale-themed amusement park is now abandoned, and childhood metaphors abound.

Small island science organization offers public the chance to participate in research.

This lakeside tower is the third attempt at getting a tourist destination to stick on the spot.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

All that remains of this Massachusetts town, demolished in the name of progress, is a stone marker.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

Civil War-era Fort designed to withstand invasion and attack, with tricky traps called "murder holes."

This railroad tunnel was once the longest in Massachusetts.

The oldest surviving wood-frame building in North America is still in the family.

This series of landscape dioramas tell the story of New England forestry in exacting miniature detail.

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

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

For 20 years, this whale skeleton has been slowly dripping oil on the floor of the museum where it hangs.

The pleasant woodland cemetery that has inspired more than its fair share of wild legends.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

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