The 36 streets of the Old Quarter (although they number up to 70) may have had its roots in the 15th century, when they developed from 36 guilds or workshop areas, each having a different function and characteristic. When streets were later developed, the guild names were applied.
Drink. Skip your Starbucks (during this trip it has not penetrated the Vietnamese market yet), have some local ca phe instead. Vietnam is the second largest coffee producer in the world and local coffee is xxx times better than any Starbucks drink ever will be.