Just as sailors abide by the laws of the sea, desert inhabitants live by a code that keeps them safe in this often extreme environment. Lesson number one: Your water is everyone’s water.

It’s not New York or Shanghai — it’s Cairo. Here are some tips and tricks for enjoying the cultural life of this great city without getting a headache or hearing loss.

Morocco has four historical capitals: Fez, Marrakesh, Meknes and Rabat. I spent a week in each and emerged with a clear favorite.