This is the most famous attraction to do in Hoi An.
I will spend at least a day there to visit the small streets, see the special houses and temples or visit the markets. I will also stay there at night where this is a living town full of lights everywhere as you can see on the following picture:
It is also interesting to see the Japanese Covered Bridge (Cau Nhat Ban) at night when there are not too much tourists visiting it.