Thailand Cultural Centre
District: Huai Khwang
Bookable auditoriums and event grounds at 14 Thiam Ruam Mit Road, Huai Khwang. Thai name: ศูนย์วัฒนธรรมแห่งประเทศไทย. The small hall is 2,000 sq.m. Also a main auditorium, outdoor lawn, and exhibition rooms.
Photo: Tmd (Tevaprapas), Wikimedia Commons, CC BY-SA 4.0. Main-hall stage in 2015, not the facade.