BACC is the Bkk Arts and Culture Centre-that rounded white building across from MBK and Siam Discovery-BTS Nat. Stadium (or rather in between that and Siam).

From 8/3 till 18/4-so it includes Songkran, there will be a special exhibition named ; You are not alone. This is the 3d of its kind of the non-profit Arts AIDS foundation for artists to help you understand better the issues re awareness and prejudice re this disease. Works (paintings, pictures-no real list if there is more) of 16 Thai artists will be on show.

MY own addenda: highly likely these are gay.,GLBT or so, or suffering from the disease.

Entry to this centre was frree last time I went there-some time ago, but there were strict rules re check of any bags you take and have to deposit. Mostly open normal office hours.

Source: BAM-BKK Art Map.

Thanks for the info about the Exhibition. Once the waterworks at Songkran are over, I will definitely go to see it.

for those interested in Caravaggio works exhibit there it's still for another 2 weeks but not open on Mondays