A sculptor's dream castle turned fantastical ruin.

The decaying remains of a 1960s mechanical wonderland that never officially closed.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

One of the largest barracks of the Austro-Hungarian monarchy's military is now an abandoned ruin.

Croatia's "hairy stone" fortress is one of the most well preserved Istrian castles.

The ruins of an 11th-century Norman castle with a rare, perfectly circular shape.

Not even a series of devastating fires could keep this odd castle in upstate New York from bouncing back.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

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

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

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