Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Pop culture has helped to keep this iconic British building from being destroyed.

What started as a way to address damp basement walls turned into a house filled with intricate hand-carved designs.

An approximately 500 million-year-old rock outcropping covered in fossilized bacteria.

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

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

A 60-foot-tall tower provides unparalleled views of the southern Green Mountains.

The Vermont square that inspired Shirley Jackson's "The Lottery."

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

A giant toy jack made of numerous welded-together fire hydrants.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A New England curiosity cabinet, one hundred years on.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

One car at a time please.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

100 massive sculptures in the Hudson River Valley.

An enormous cat made of recycled wood scraps.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

A recently abandoned psych ward at the end of Sanatorium Road.

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