In the early 1880's dissension arose among the Muslim and Christian inhabitants of al-Karak, east of the Dead Sea. Up to that time the believers of both religions had lived peacefully together in the city. Problems arose and the Christians decicded to move. They were allowed to settle at Madaba. The government gave permission to build churches, but exclusively on those spots where churches had existed in Antiquity. The immigrants removed the debris from still partially visible foundation walls of the ancient churches. During this work they discovered in 1884 a marvelous mosaic map. It had been part of the floor of a large cathedral. The surviving fragments were roughly repaired and incorporated in the floor of the new St. George's church. It took nearly a hundred years and many admirers to have the map finally restored. This book is an introductory guide and can be a help to different kinds of people, such as visitors, students, and professors teaching first level archaeology, bible, and Umwelt. Numbers on the sketch included in the guide, refer the reader to appropriate information in the booklet. A colour reproduction of the map and a black/white sketch is included.