Photo: Mysterious newcomer

Pranksters struck the site of the former Arc of History at U.S. Highway 160/550 intersection at the DoubleTree Hotel and placed a unicorn head on the post of the former controversial art piece. Enlargephoto

Shaun Stanley/Durango Herald

Pranksters struck the site of the former Arc of History at U.S. Highway 160/550 intersection at the DoubleTree Hotel and placed a unicorn head on the post of the former controversial art piece.