An exquisite grouping of structures made from 10 tons of invasive saplings.

The fastest transatlantic ocean liner sat abandoned in a Philadelphia shipyard for decades.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

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

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

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

The world’s first penitentiary, meant to be humane, drove men insane.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

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

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Beer lover's can-covered house.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

An abandoned gun-funded 19th century utopia.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

Connecticut's shot tower is near the end of its life.