David,
Great pictures. I wish I had thought of trying to get to the roof.
I had never heard the name “Pittman Building”. Do you know the origin of the name?
A Vietnamese friend told me that the basement of the building next door was used by the Secret Police to torture suspects.
PS Looking up “Pittman Building” took me to this link that I hadn’t seen before:
https://www.rustycompass.com/vietnam...0#.XVBCAiTF2Ec
Was this your expedition to the top?