1) Cambodian architecture evolved from wooden structures to more substantial brick and stone buildings incorporating Indian forms and Khmer elements. Examples of early temples still stand in ruined states. 2) In Cambodia, important early architectural developments included the creation of cities, temples, and irrigation systems between 800-900 AD. Major later structures include Angkor Wat and Angkor Thom. 3) Myanmar architecture is primarily religious in nature, with styles evolving over four historical periods. Major structures from the Pagan period include stupas with terraced bases and temples surrounded by corridors. Later architecture incorporated Chinese influences.