Where is the company, which built the roller coaster Comet, based?
Philadelphia Toboggan Coasters Philadelphia Toboggan Coasters, commonly referred to as PTC, is one of the oldest existing roller coaster manufacturing companies in the world. Based in Hatfield, Pennsylvania, it was established in 1904 by Henry Auchey and Chester Albright under the name Philadelphia Toboggan Company. The company manufactured carousels, wooden roller coasters, toboggans (roller coaster cars) and later, roller coaster trains.
Grindline Skateparks Grindline Skateparks is an American company that designs and builds skateboard parks. The company is based in Seattle. The company was founded and is operated by Mark Hubbard. Incorporated in 2002, it has designed and built over 400 skateparks worldwide, including the largest skatepark in America, Spring Park Texas.