Knuffingen Airport is really the smallest airport in the world and it is based on Hamburg Airport. The level of detail throughout the 1:87 scale Knuffingen is really phenomenal! Frederik and Gerrit Braun, energetic twin brothers with no shortage of dreams, built with their team, the worldâ€™s largest model airport. It has 40,000 lights, 15,000 figurines, 500 cars, 10,000 trees, 50 trains, 1000 wagons, 100 signals, 200 switches, 300 buildings, 40 planes and much more! You can visit Knuffingen Airport in Hamburg, it is located Wunderland museum.