Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

The site of William McKinley's tragic assassination is only marked by an underwhelming boulder.

The library of every book lover's dreams.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

This tiny little island has, as the name says, just enough room for its single house.

The only remaining building in New York to see the inauguration of a president is being slowly overtaken by a grocery store.

This small road tunnel is the only place where you can cross beneath the Erie Canal.

This abandoned ironworks was once the most important military supplier in America.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.

The "last holdout of the Confederacy” actually sat at the edge of the Canadian border.

A memorial to the 1913 tragedy that helped protect the workers of the future.

What remains of the simple red brick chapel where the women's rights movement began.

The second largest maple syrup producer in the U.S. runs a high-tech operation.

A 10-foot-tall concrete Alley Oop statue left over from World War II now stands on the side of the road.

The only home that Alexander Hamilton ever owned has a history almost as troubled as his own.

A preserved factory in the "Home of the Carrousel" is now a museum dedicated to the classic wooden ride.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

The great American road trip, but smaller.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Dozens of houses in the Adirondack Mountains are reminders of a literal "cottage industry" to cure people of a deadly disease.

A giant roll of mints marks the birthplace of one of America's most famous candy brands.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.