The village of Muurame lies a few miles south of Jyväskylä, the town where Aalto grew up and opened his first architectural practice in 1923, so it was only natural for the parish council to commission its new church from the closest qualified architect. Aalto had made his first trip to Italy in 1924, during which he had been greatly impressed by the architettura minore of small, simple churches in rural settings. His travel mpressions are much in evidence in the church of Muurame, with the tall campanile on one side of the rounded chancel, the single-aisle interior with a barrel vault (originally painted black) over a system of joists, and the parish hall in the form of a side chapel to the right of the chancel. A staircase leads down from this room to an exit with a loggia in Brunelleschi style. The vestry is in the bell tower at the level of the chancel. The original 1926 plan included a 'rose garden' at an right angle between the church and the side chapel, a taller campanile, and painted figures in the entrance vaulting. These features were omitted, as were the intended apse paintings. Aalto worked out the interior with great care, preparing numerous detail drawings. The furnishings, designed fairly late in the project, took on elements of Aalto´s 'conversion' to Functionalism in 1928. Thus, Danish PH lamps were used for interior lighting, and the vestry furniture was of tubular steel.
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.