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

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

A 2,000-year-old Adena burial mound located along a busy street in Columbus, Ohio.

A former copper mine which became a truly unsuccessful prison.

This last stalwart of the now-forgotten feminist restaurant movement has been serving food in an activist atmosphere since 1977.

The intriguing personal collection of a professional demon-chaser.

A small museum packed with specimens from important fossil sites and minerals from historical pegmatite quarries.

The location of the pie company that gave a classic toy its name is now a parking lot.

A tribute to the truly loyal dog who waited outside a hospital for his owner to come back.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

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

An abandoned gun-funded 19th century utopia.

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

Hidden behind a Target are pillows of cooled lava that formed at the bottom of a deep lake in the Mesozoic Era.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

This enormous abandoned factory is now a makeshift graffiti gallery.

A small chapel celebrating the spiritual bond between dogs and humans.