American artist J. Alden Weir purchased this 60-acre estate for $10 and a painting.

An abandoned gun-funded 19th century utopia.

An abandoned Depression-era zoo hidden just off the highway.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

A former copper mine which became a truly unsuccessful prison.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

The only surviving fragment of the lost Narragansett Pier Casino.

Abandoned Coast Artillery fort now serves as graffiti canvas and sightseeing vantage point.

Once the largest attraction in Rhode Island, this former amusement park is now a gorgeous coastal state park.

The Sun King's military models, saved from the Louvre.

The centuries-old crosses "growing" in the cemetery are steeped in local lore and are believed to have healing powers.

This small electronics museum is full of whirring, humming, clicking ephemera.

A long-closed church turned into a saintly skate park.

The largest airborne operation in history was launched to capture this bridge.

The Siege of Naarden ended in 1814, but the cannonballs embedded in the town church remain.

At the base of this tower, a plaque marks the original center point of the Netherlands.

The remnants of a WWI naval mine that once terrorized the country now decorates a street.

A bridge that has seen many reiterations over its lifetime.

For years, the remains of this ancient Roman fortress were hidden under an orchard.

This vast World War II defense line was the site of a fierce battle.

This century-old street sign is a forgotten remnant of the old city.

This Dutch windmill has its roots in an American invention.