Ajlun is an old town located north of Jordan, where there is a lot of forestry. There is an old castle called "Qala Al Rabat ". Inside of the castle is intricate and fun to walk. Small museum is opened and showing old coins, glasses and ceramics.

If you go from Amman, it takes one and half hour from Abdali bus station, costs only half JD. The bus arrives to the town and the castle is about 2km from there, so you can take a taxi. It might be little busy but you can visit Ajlun and Jerash on the same day.