This paper was read at the Annual Research Conference of the Burma Research Society on 24 December 1959. It describes religious architecture between AD 1000 and 1300: the construction plans of pagodas both solid and hollow, monastries of brick and wood, and others religious edifices including alms houses, rest-houses, libraries, and reservoirs which contributed to propogation of the Buddhist Sasana.....Subject Terms: 1. Religious buildings-Bagan... 2. Religious art and symbolism... 3. Religious education... 4. Pagodas... 5. Monasteries... Key Words: 1. Ku (Guha)... 2. Kalakapot... 3. Puthuiw (miniature pagoda)... 4. Kalaklon (brick monastery)... 5. Ceti (solid pagoda)... 6. Tipitaka (Buddhist scriptures)... 7. Jatakas