Altstadt - Münsterplatz For centuries, the minster has dominated the town and the region and has become synonymous with Ulm both at home and abroad. This prominence is mainly attributable to its spire, which, at 161.53 meters, is the highest church spire in the world. The foundation stone was laid on the June 30, 1377. In 1543 construction came to a stop due to lack of money. Building was not recommenced until the middle of the 19th century. At first the main aisle was stabilised and then both choir steeples completed.