 If the structure has one long thin approach of steel to the top of a cylinder and camel-back return, that's Bisby's Spiral Airship.If the structure pictured is a thick wooden cone spiral slide, the entrance next-door east of Lee's Barbeque with a switchback stairway to a shack on top, the caption should read "Niagara Barrel".The Pike's first more traditional wooden roller coaster opened for business in June 1907.