Destructive children, start your engines.

A unique sculpture park that specializes in the huge and bizarre.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

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

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

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

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

A whimsical monument deep in this park commemorates the groups that helped build it.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

A terrific purveyor of natural history objects and curios.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Trash escaped from a landfill to fill beaches with all kinds of treasure.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

This lovely hilltop tower was specifically built to withstand 100 MPH winds.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

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

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.