To reach Jerash, our one hour calculated drive in the rental car took us three hours in actuality. In Jerash, Jordan., sits the ruins of the ancient Greco-Roman city of Gerasa dating back to the time of AG (Alexander the Great). On this real adventure, which was full of waylays and mishaps, I learned a few important lessons, and I've traveled a bit with friends and on my own. First and foremost, have a map in Arabic, if you're traveling in an Arabic speaking country. Two, pay the $8 dollar a day fee for a GPS, if you're going it on your own in a rental car. Lastly, three...always, always follow your instincts with directions (unless directionally challenged), and dealings with people.
Jerash was a truly hard fought destination for my traveling companion and I to get to, but it was totally worth getting lost in Amman, and our side journey to near proximity of the Syrian border. Jerash is such a large and amazingly well preserved site that it is worth the time and every effort to make a stop and see it, if you happen to be traveling in Jordan.