Człuchów Castle consists of some of the defence walls and the 46-metre tower. The Człuchów stronghold was built during the 14th Century by the Teutonic Order. The exact date of completion is unknown but it is assumed to be the year 1365. During the history, the castle was considered an unconquerable fortress, and was an important element in the defence system of the monastic State. The glory days of the fortress date were up to the year 1772, when it was taken over by the Prussians, while the city fire of 1793 completed the devastation of the building. In order to rebuild the town, the residents were granted consent to deconstruct the Castle, leaving only the tower and fragments of the defence walls. A neo-gothic Evangelical church was added onto the foundations of the former Castle chapel during the years 1826-1828. This church is associated with one of the mysteries; the lost Amber Chamber, supposedly hidden by the Nazis.
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.