A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

One man's swirling six-acre monument of stone.

The Hudson River School comes alive at this palatial estate.

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

Six peaceful acres in a residential neighborhood dedicated to art and peace.

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

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

100 massive sculptures in the Hudson River Valley.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

A famed data visualizer's personal sculpture garden is a landscape of modern and megalithic wonders.

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

This historic railway museum may have lost its passengers but not its love for trains.

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

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

One of the world's largest model railroads is a mind-boggling achievement.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

Mysterious rocks that ring musically when struck.

A park full of outsider art, created by college students studying outsider art.

Intricate storybook scenes are tucked inside these shadow boxes, which are tucked inside a library in the Pocono Mountains.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.