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

This historic railway museum may have lost its passengers but not its love for trains.

A parade of antique steeds offers a quirky ride through history.

An abandoned Depression-era zoo hidden just off the highway.

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

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

A former copper mine which became a truly unsuccessful prison.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

This museum on a college campus pays tribute to the Arctic and to two explorer alumni.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

A plaque memorializes the Boston location of one of the largest nightclub fires in history.

A whimsical monument deep in this park commemorates the groups that helped build it.

A world-class collection of mechanical musical instruments and automata.

Destructive children, start your engines.

The boulder on which Alexander Hamilton laid his head as he died can still be visited on the New Jersey coast.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

Whimsical artist house in the New Jersey woods.

One of the world's largest model railroads is a mind-boggling achievement.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

Series of storm drains connected to a dark urban legend.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.