The remains of the oldest bone-headed dinosaur in North America.

A unique subway station where pillars evoke ancient civilizations.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A touching tribute to the "Wonky Donkey."

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This unincorporated community in western Ohio got its peculiar name from John "Daddy" Baker.

This bridge uses an inverted bowstring truss and is believed to be the only of its kind in the United States.

The largest ancient burial mound in Ohio.