These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

This park contains a number of standing stones meant to heal and inspire.

Mysterious rocks that ring musically when struck.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Abandoned Italianate architecture on the coast of Maine.

Accessible only by boat, this centuries-old island fort never saw troops or combat.

Possibly the smallest church in the world floats in the middle of a pond.

This tiny church near Sleepy Hollow contains Henri Matisse's last work, a rose window, and nine windows by Marc Chagall.

A mysterious echo seems to defy the laws of acoustics.

A castle built for love, and abandoned due to heartbreak.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

A natural gas leak provides a flickering flame beneath a waterfall.

The gravestone of an eccentric Connecticut doctor features dinosaur tracks and a pair of fossil tree casts.

A Yale University president wears full samurai garb in one of America’s oldest cemeteries.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

The cave where two British judges hid in exile after sentencing the king to death.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

Over fifty whirling pools left by the glacial age.

Books you don’t need in a place you can’t find.

A careful eye can find hundreds of dinosaur tracks running along the Connecticut River.