The old part of Jaffa is full of little streets with passages with arches, flowers everywhere, and a different construction to its neighbour the new city of Tel Aviv.
I guess this is what it makes it special
Don't forget to pay a visit to the old city of Tel Aviv, it's called Yaffa or Yafo. It is really nice. Lots of fishermen and beautiful buildings there! Unfortunately I can't provide you with a picture of it...