The Museo Arqueológico Municipal de Jerez de la Frontera is an archaeological museum established in 1873 as the Municipal Archaeological Collection, merging collections donated by wealthy individuals, and based at the Old City Hall of Jerez de la Frontera. The museum opened to the public in 1935. The collection includes a Corinthian helmet, extremely rare in Spain, found near the city's Charterhouse by the river Guadalete. The collection also includes Roman ceramics and other items.
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.