There are thousands of temples, or wats, in Thailand. Some of these vary in style and size but according to the principles of Buddhist architecture, the structures within a temple should include a bot, or ubosot, for religious ceremonies such as ordinations: a vihara to house various Buddha images and for laypersons to take part in religious services; a Sala kanparien which is a large meeting hall which is not only used for religious services but also sometimes as a social or civic center, a mondop for storing the Buddhist scriptures; chedi for housing sacred relics or images, a hor rakang, or belfry, to sound the time for ceremonies, prayers, etc. and kuti where the monks live. Some may also have a library, a crematorium and a school,