It was once the base for a series of domestic terror attacks.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This retired stagecoach tavern is the oldest building in Cleveland.

"A hideous albatross in the Hudson River Valley."

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

All that remains of a gigantic earth-moving machine.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

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

The eccentric mansion of one of the most popular horror authors of modern times.

Plaque remembering the 18th century forced relocation of Acadians.

A forgotten sea village stands silent after hurricanes deemed it obsolete.

Turns out you can see the world without ever leaving Maine.

Former laboratory of radical psychiatrist Wilhelm Reich.

This Maine bridge may be the last wire-supported bridge of its type in the world.

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

The press that first printed the Book of Mormon.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

A field in which God and his son Jesus purportedly appeared to a young farm boy named Joseph Smith.

A New England curiosity cabinet, one hundred years on.

A 30-foot stack of piano keys memorializes one of the greatest keys players in jazz history.

One of the best places to see feral Colonial Spanish Mustangs in the United States.