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

The home of aviation trailblazers, in a remote corner of the big city.

Walk into the 19th century without leaving Brooklyn.

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

An unrealized dream to wirelessly electrify the entire Earth.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

"A hideous albatross in the Hudson River Valley."

A fictional town that was briefly brought to life before fading once again out of existence.

This impressive mansion in Vinegar Hill has some mysterious details in its architecture.

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

An obelisk marks the farmhouse where the founder of Mormonism was born.

An unexpected canine grave atop a mountain.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

Who is this marble man, perpetually creeping up the steps of his own mausoleum?

The world’s largest underground marble quarry is hiding in Vermont.

Fossilized sea bottom and lime quarry.

Small rustic cabin nested in the mountains of Killington, Vermont.

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

This abandoned orphanage-turned-asylum witnessed a terrible chapter in Québec's history.

Three gardens with toilets and urinals filled with bright flowers started as a protest against zoning rules.

This magnificent Japanese garden provides a moment of Zen in rural Vermont.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

Tucked away on the second floor of a small town library is one of the great private Victorian taxidermy collections looking today very much like it did in 1909.

The remains of a deserted 1800s farming community can be found in Little River State Park.