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

The largest collection of Frazetta originals in the world.

Inside, ancient treasures. Outside, modern contradictions.

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

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

Huge masonic hall in Philadelphia with lavishly themed rooms.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

A world-class collection of mechanical musical instruments and automata.

This might just be the TARDIS of bookstores.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

A swimming hole in the historic industrial quarry that supplied the marble for the Baltimore Washington Monument.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

These mystical miniature houses bring a touch of magic to the New Jersey woods.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This stunning Connecticut mansion is actually just a one-room-deep hoax.

The world's largest public collection of PEZ memorabilia.

Thousands of American timepieces on display in the former clock-making capital of the country.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

Discovered by cows, these upstate New York show caves are presented with a healthy dose of psychedelic folk art.

100 massive sculptures in the Hudson River Valley.

Mysterious 500-year-old tapestries depict a unicorn hunt.

North America’s largest collection of horological devices and home to a colossal clock with a dizzying array of features.