Ulm is a city in the south German state of Baden-Württemberg, founded in medieval times. In the center is the huge Gothic Ulm Minster, a centuries-old church. Its steeple has views of the city and, in clear weather, the Alps. The Town Hall has an early-Renaissance facade, murals and a 16th-century astronomical clock. Half-timbered houses line the narrow alleys of the Fischerviertel, an area close to the River Danube.