ThequadrangleisatraditionalcourtyardresidenceinChina.Astandardquadrangleusuallyconsistsofacourtyardwithindependenthousesalongitsfoursides.Housesindifferentdirectionshavetheirownnames.Thehouseonthenorthfacingthecourtyard’sentranceiscalledthemainhouse;thehousewhichliesontheeastorwestiscalledthesidehouse;andtheonestandsonthesouthiscalledreversely-sethouse.Theoldergenerationortheheadofthehouseholdlivesinthemainhouse,whiletheyoungergenerationlivesinthesidehouses.Thereversely-sethousecanbeusedasakitchen,astoreroom,asitting-roomorastudy.Thequadranglehasnowbecomeatouristattractionandiswell-knowntotouristsfromallovertheworld.