Hue from the airplane
The contrast between Saigon and Hue is striking. In Saigon we had a brief rain shower one evening. In Hue it was overcast and it rained for much of the day. It was also quite cold by Vietnamese standards (though cool compared to New England). Hue is also much smaller and quieter than Saigon. And it is not constantly growing like Saigon.
Vietnam, Past and Present 
The picture of Hue is all nature from the plane, so different from Saigon