On top of Mt Nebo, this modest church, or more accurately basilica, was built around 4th-century foundations in 597 and has just undergone major reconstruction. It houses some of the best (and best presented) mosaics in Jordan, dating from around 530. The masterpiece is a hunting and herding scene interspersed with an assortment of African fauna, including a zebu (humped ox), lions, tigers, bears, boars, zebras, an ostrich on a leash and a camel-shaped giraffe.
The church was abandoned by the 16th century and only relocated in the 20th century, using 4th- and 5th-century pilgrim travelogues. The Franciscans bought the site in 1932 and were responsible for excavating most of the ruins of the church and the monastery, as well as reconstructing much of the basilica.
The church is part of a functioning monastery, off limits to visitors. There's a small but fascinating museum presenting the history of the site.