Akko

Pros: beautiful mosque, fun forts, nice people, a different feel than the average Israeli town
Cons: a little difficult to get to for the average tourist

I meant to stop only for an hour or two, but I was blown away by Akko. This place confirms and refutes most perceptions about Israel. The history is extraordinarily well preserved, however, what really got to me was the people there. For a moment, it...

Pros: Ancient city, best hoummos in Israel, great view
Cons: Not much to do there

If you are in Israel, you must go to Akko, at least for a half day or so. Walking around this interesting mainly Muslim and Christian City, eat the best hoummus in Israel and all the baklava you can think about. The real interesting thing is that it is within Israel on the coast, north of Haifa and south of Rosh HaNikra, Akko doesn't have a lot to see, however it is a nice day or half-day trip.
Located right on the Mediterranean Sea you can walk around the old city and see many preserved buildings and mosques which are still used.
The same day, you can visit Haifa or other places in northern Israel. Akko is definitely worth a stop.