- Thrum-thrum. Bong-bong. Choppetta-choppetta-choppetta. The world is a big and noisy place, filled with wonderful things to do, see, and hear. This book shows them all, from an airport, a train station, and a shopping mall, to school and a swimming pool! Kids will happily explore the many sites and sounds captured in Britta Teckentrup"s bright and colorful pictures.