A surprising museum of 20th-century technology.

One of New Jersey's oldest surviving buildings still bears the mark of our former British overlords.

This colonial mansion has been home to a staggering number of American historic figures.

This local gem houses the largest collection of pre-Raphaelite paintings outside of the U.K.

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

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Enjoy a slice while browsing the world's largest collection of pizza memorabilia.

Dr Barnes' $25 billion private collection of art and arboretum.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A recently abandoned psych ward at the end of Sanatorium Road.

Seven people are buried in the middle of what's now a movie theater parking lot.

A failed piece of Orientalism has become the proud symbol of a community.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.

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

A park full of outsider art, created by college students studying outsider art.

Mysterious rocks that ring musically when struck.

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

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

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

This splendid Versailles-inspired mansion has the largest French-style formal gardens in North America.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

These lush botanical gardens employ the most purrfect pest control force.

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.