The Church of La Milagrosa was built between 1900 and 1904 under the architects Juan Bautista Lázaro de Diego and Narciso Clavería y de Palacios. The architecture is eclectic, exhibiting Neo-Mudéjar features on the exterior and mainly Neo-Gothic features in the interior.
The exterior has Neo-Mudéjar features, while the inside is predominately Neo-Gothic. The church covers 900 square metres. The facade has two towers, one on each side, each with a square base and an octagonal steeple. In the past it had a mosaic by Daniel Zuloaga.
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.