english: The fourth one says Dokki (a district in Cairo, whose name sounds like the word hammering or knocking in Arabic, that's why the sign), and finally the one on the bottom refers to an area called El Tawabeq (The Levels, and was originally known as The 3 Levels).
non_english: Da Via Faysal: Al-Tawabeq ("I livelli"; il nome in origine era "I tre livelli", da cui il segno tre).