798 Art Zone (), or Dashanzi Art District, is a complex of 50-year-old decommissioned military factory buildings boasting a unique architectural style that houses a thriving artistic community in Dashanzi, Chaoyang District, Beijing. The area is often called the 798 Art District or Factory 798 although technically, Factory #798 is only one of several structures inside the complex formerly known as 718 Joint Factory. The buildings are within alleys number 2 and 4 on Jiǔxiānqiáo Lù (酒仙桥路), south of the Dàshānziqiáo flyover (大山子桥). The area is anchored by the UCCA Center for Contemporary Art, the largest and most visited venue in the area. In recent years, it has been the main venue for the annual Beijing Queer Film Festival and Beijing Design Week. Construction The Dashanzi factory complex began as an extension of the "Socialist Unification Plan" of military-industrial cooperation between the Soviet Union and the newly formed People's Republic of China. By 1951, 156 "joint factory" projects had been realized under that agreement, part of the Chinese government's first Five-Year Plan. However, the People's Liberation Army still had a dire need of modern electronic components, which were produced in only two of the joint factories. The Russians were unwilling to undertake an additional project at the time and suggested that the Chinese turn to East Germany where much of the Soviet Union's electronics equipment was imported. So at the request of then-Premier Zhou Enlai, scientists and engineers joined the first Chinese trade delegation to East Germany in 1951, visiting a dozen factories. The project was green-lighted in early 1952 and a Chinese preparatory group was sent to East Berlin to prepare design plans. This project, which was to be the largest by East Germany in China, was then informally known as Project #157. The architectural plans were left to the Germans, who chose a functional Bauhaus-influenced design over the more ornamental Soviet style, triggering the first of many disputes between the German and Russian consultants on the project. The plans, where form follows function, called for large indoor spaces designed to let the maximum amount of natural light into the workplace. Arch-supported sections of the ceiling would curve upwards then fall diagonally along the high slanted banks or windows; this pattern would be repeated several times in the larger rooms, giving the roof its characteristic sawtooth-like appearance. Despite Beijing's northern location, the windows were all to face north because