Cai Guo-Qiang (pronounced 'Tzai Go-Chang'; Cai is his family name) is one of the most important Chinese artists to have emerged internationally in the 1990s. Best known for his spectacular firework projects at locations ranging from museum entrances to the sites of Land art works such as Robert Smithson's Spiral Jetty, Cai has explored a diversity of media and artforms. These have included works such as an extension of the Great Wall of China, designed to be seen from outer space by extraterrestrial beings; feng shui rearrangements of private living spaces both in Japan and New York; participatory projects with kites, jacuzzis and mini golf courses; and sculptures constructed from melted-down cars or abandoned boats. His projects are strongly influenced by their location and the works are frequently altered or developed as they are exhibited at new sites. Unifying Cai's wide-ranging work is his consistent investigation of humanity's place within the universe.