Creaky dinosaurs grow in the backroads of Monmouth County, New Jersey.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

This park contains a number of standing stones meant to heal and inspire.

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

A field of nothing but boulders which resembles a giant's gravel driveway.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

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

Mysterious rocks that ring musically when struck.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

This tiny structure was built by the creator of the Brooklyn Bridge.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

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.

Penn State's giant bug collection.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A soon-to-be-forgotten roadside spectacle loaded with local lore.

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

The highest point in Maryland is only accessible by hiking through another state.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

Destructive children, start your engines.

Near-constant high winds deform the trees on Spruce Knob, the highest point in West Virginia.