I found HCMC very walkable and there were so many trees and parks that even the heat was bearable.
Completely agreed about the War Remnants Museum, it moved me to tears within minutes. I’m from Malaysia, one of the places where Agent Orange was first trialed before it was put to use as a weapon, so that particular exhibition hall was so personal since a family friend was born disabled because of it.
On a lighter note, there was a bánh mì chảo place within a 15 minutes walk from the War Remnants Museum that was so good I am still dreaming about it to this day.
Salam dari kbin!