It is the only place i have been in a bycycle traffic jam. Was in a cab but School had just finished and seemed like thousands all dressed in white on their bikes.
I was there in 1996. It was a 24 hour building site and i suspect much has changed. Enjoyed my trip though, especially north, Hue, Hanoi, Halong Bay. Its a pretty full on place, on one overnight train journey one of the guys sharing the sleeper pulled out an automatic gun to inspect. Pirates on...