Dr. Zainab F Ali attended the international conference on 'ISES 2005 Solar World Congress' organized by the International Solar Energy Society [ISES] held in Orlando, Florida, USA, August 6-12, 2005. Dr. Ali presented a paper on passive architecture titled 'Kahn in the Tropics'. This international conference featured American Solar Energy Society's [ASES] 34th Annual National Solar Conference, 30th National Passive Solar Conference, and American Society of Mechanical Engineer's [ASME] International Solar Energy Conference. The conference with 250 sessions and workshops had speakers from more than 700 countries from around the world.