An award-winning children’s garden enchants visitors at the intersection of natural beauty and fairy tales.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

The land is home to swimming ponies and a legendary 18th-century treasure.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

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

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

An abandoned castle owned and ignored by Masons carries a cursed history.

The first pet cemetery in the United States.

It would take 35 firetrucks to fill this enormous glacial pothole.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

Hundreds of numbered stakes hidden in the woods mark the graves of the lost souls of a nearby asylum.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.