A visit to the city is an adventure for every child. Who rushes through the traffic? Where does the electricity for the lanterns come from? How is the glass for all the windows in the skyscrapers made? In eight large-format hidden object pictures, little explorers can go on an exciting foray and, thanks to the many flaps, explore what is happening inside the buildings and under their feet. In detail, the city traffic, the office district, the sewerage system and power supply, the park, the shopping centre, the police, the fire brigade, the hospital and a typical city district are presented and the development of a city is explained - more than 55 flaps and game elements invite to take a closer look. A book for city experts and those who want to become one!