Hanoi was my second taste of the Vietnamese metropolis lifestyle. With chaotic inner city streets, a distinct European quarter and a unique food culture not found anywhere else in Vietnam, it's a must-do in any Vietnamese travel itinerary.
I did spend one full week in Hanoi, but I probably could have fit this itinerary into 3-4 days. After rushing ourselves in Hoi An and Da Nang we wanted to slow it down and give ourselves a little extra time - so if you're in a rush you could squeeze in all these places in about half the time.