An abandoned Victorian-era mill in the middle of modern Manchester.

A cable-suspension footbridge that hangs high above the Mill River.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

A mailbox that saved a nature reserve.

These simple structures are living monuments to the fishermen who built this community over a century ago.

Ruins of an old sugar mill sitting quietly next to a park in rural Florida.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

Meet manatees face-to-face at this zoo for native species.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

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

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over fifty whirling pools left by the glacial age.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

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

Ruins of a historic medical facility sits eerily by the water.

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

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

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

A former copper mine which became a truly unsuccessful prison.

An overgrown and abandoned tuberculosis ward resides in the midst of a quaint modern neighborhood.

A tiny memorial for the year the Connecticut River almost destroyed New England.