Arco de Santa María is one of the 12 medieval gates of Burgos had during the middle ages. It was rebuilt by Charles V, Holy Roman Emperor during the 16th century after the local rulers of the city supported him during the Revolt of the Comuneros. On the facade of the arch appear people of importance to the city of Burgos and Castile, such as Diego Rodríguez Porcelos, the founder of the city, Jueces de Castilla Laín Calvo and Nuño Rasura, El Cid, Fernán González and Charles V himself.
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.