The city flourished as the center of an oil field, Puyang, is a historic city in itself. For the planning exhibition hall, to form a montage of the old down town will be an appropriate way to record the comfortable street spaces and lives, which are the most valuable merits of the city. In the pure cube, the directions of the diagonal streets point out the location of the city gate and urban plaza to indicate the connection between the building and the city. They also could be considered as clues for travelers to come and communicate with the citizens here. Besides the exhibition of city planning, there are a series of other functions, such as community service, exhibition, training and relative retail stores.