These thermae (Roman baths) of Gijón are considered one of the most important sites in northern Spain. Campo Valdés are a site museum on baths dating from the Early Empire. They are located in front of the Church of San Pedro under Campo Valdés Gardens, at sea level. The baths were discovered in 1903, remaining hidden from the public until 1965.
Located outside the Roman walls, the baths consisted of two distinct units: the household area and the area of the thermae.
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.