A unique columnar residence built in the 19th century.

This boulder with a 200-word legal dedication to God has remained hidden in the woods for over 150 years.

This mysterious artificial cave has long puzzled New Englanders.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

One of the indelible moments of the American Revolution took place at this location.

This rare symbol of Eastern philosophy in the West has been created over years of painstaking construction by the local community.

This cemetery served as the only official burial grounds in Cambridge for nearly 200 years.

These whimsical works of art tell the story of the city's past and present.

A stunning garden filled with fantastical environmental folk art and sculptures.

One man’s hobby is another man’s world of metal wonders.

The first bell ever cast in Boston was cast by Paul Revere...and sounded terrible.

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

Resonating tubes make music from highway overpass.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Ice cream stand, snack bar, and time capsule of milk conveyance.

It's not a typo, now say it five times fast!

This railroad tunnel was once the longest in Massachusetts.

A mysterious collection of stones stand outside a small New England town.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

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

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

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

A historic bridge with a lovely acoustic anomaly.

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