This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Elevated freight railway turned wildly successful urban park.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

The oldest farmer's market in America is so ancient it was approved by the King of England.

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.

In which a local geological marvel becomes a quaint roadside attraction.

These 20-foot sculptures will help guide you from the local train station to the local sculpture garden.

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

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

The first partially complete dinosaur skeleton was discovered here, forever changing the world's view of the ruling reptiles.

World War II bunker still standing on the New Jersey beach.

The rusting remains are visible sticking out of the waters of the Delaware Bay.

Come for the Italian food, stay for the taxidermy and giant statues.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

A daily replay of the experiment that proved the rotation of the Earth.

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

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The first American department store, and home to the largest operating musical instrument in the world.

In the early 1800s, surgery was also a show.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.