I believe that this is a military museum on Tan Son Nhut.  It is not open for public viewing. Possible what we are looking at is two C-130's and bottom right you can see a guard tower. TSNA Member, Gil Simpson, currently lives in Saigon.  This is what he said about the tall building. On Cong Hoa Blvd, on the south side of the road as you're headed out of town there is a building with a decent set-back from Cong Hoa.  I cannot remember the exact name, but it's something like "Sepact," or "Sepatk" or some stupid name. But, what may be the most interesting characteristic of the building is that it sits on the exact site of the former TSN BX that was demolished around 2003.