The Alte Brücke (Old Bridge) was erected by Charles V in 1546 and is one of the oldest constructions in Saarbrücken. The Alte Brücke connects Alt-Saarbrücken and St. Johann. Originally it consisted of 14 arches, but now only 8 remain. It was destroyed during WWII and subsequently rebuilt before being shortened in the early 1960s to make room for the urban expressway which passes through central Saarbrücken running parallel to the river.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.