Bolton is home to Gay City State Park, which features the remains of a once-thriving—and possibly, troubled—mill town. Not that there’s anything wrong with it.

Unbeknownst to many citizens of Connecticut, there are a few odd things below the surfaces of our favorite lakes.

Before it was known as a creepy abandoned mental hospital, Seaside Sanatorium was a place that employed unusual methods to cure sick kids.

Atop Mohawk Mountain sits a curious stone tower that has looked out over the Litchfield Hills for nearly a century.

During its heyday, the Sterling Opera House had its share of famous entertainers visiting and fat ladies singing. Now it’s gaining a reputation for ghostly spirits haunting. Update: We visit the Sterling Opera House to see if Andy wants to come out and play …

East Haddam is home to an abandoned village that once was home to a thriving mill and almost became a Victorian Era tourist attraction.

Once a children’s hospital, and later a facility for the mentally challenged, Seaside Sanatorium in Waterford has been abandoned for over a decade, despite its architectural pedigree and prime location. Update: We visited Seaside in April 2011.

A river runs under it — and by it, we mean Hartford. But for centuries, the Park River (aka Hog River), was above ground and accessible to all.

In its heyday, the Mansfield Training Center was one of the busiest mental health facilities in the state. Now some believe the buildings that remain are still busy — with the spirits of patients long gone.

Another summer passes and aside from a few trespassing artists, the former popular destination that was Pleasure Beach continues to be like a ghost town, slowly rotting away.