Underground tunnels remain beneath this abandoned mental asylum.

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

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

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

Glacial erratic or man-made dolmen? It probably wasn't druids.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

This park is home to a massive bird sanctuary. And maybe buried treasure!