Madaba is a city not far from Amman, is known for a large Byzantine-era mosaic map of the Holy Land, and Mount Nebo.
St George Church
St George Church is famous for a large Byzantine-era mosaic map of the Holy Land, and is worth visiting if you find yourself in this part of Jordan.
Jordan Valley from Mount Nebo
Mount Nebo is where Moses is supposedly buried, so has huge religious significance. It also offers amazing views of the Jordan Valley.