Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

This stone bridge is all that remains of a submerged New Jersey town.

A historic bridge no one is allowed to cross.

Explore the dark underground corridors of this graffiti-covered former military fortification.

The only remaining historic maritime signal station in the United States.

Its unique collection details the history of the state's svelte railroads.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A wooden theatre that remains the heart of a charming Victorian-era New Jersey enclave.

Dinosaurs, magic, and wonder are hidden amid the forests of Allaire State Park.

Along a busy beachfront strip you may hear Frank Sinatra singing from one boardwalk home.

No one really knows how these old hobby horses got here, but the herd keeps growing.

This vintage train once gave new meaning to “swimming upstream.”

A former plant in one of the hubs of U.S. steelmaking has been turned into this museum celebrating the history of American industry.

Descendants of this colonial Pennsylvania family still travel from far and wide to visit the 300-year-old home of their Quaker ancestors.

The idyllic colonial home of the artist behind the famous portraits of George Washington and Thomas Jefferson.

Final resting place of one of the classic authors of horror literature.

The unusual patterns in this rock formation result from two distinct modes of weathering.

This art display in Dedham honors a local fish, and is dedicated to the volunteers who restored the canal.

This building is more than 250 years old and was built in one of the first towns settled in Massachusetts.

This memorial garden is the final resting place of many beloved pets including that of a famous explorer.

Old car parts and assorted materials get turned into one man's mechanical treasures on the side streets of Cleveland.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.