The Sint-Lambertuskerk was built between 1914 and 1916 and named after the Maastricht-born saint Lambert. At the time of its completion, it was the first church outside the old city wall. The church was designed by Hubert van Groenendael in neo-Romanesque style on a cruciform plan. The church was initially operated as a Roman Catholic parish church.
Soon after its completion in 1916, subsidence cracks developed in the structure. Ten years later, the church was restored and no further damage occurred until 1970. Beginning in 1970, portions of the structure began to sag and new cracks developed. Since 1985, the church has no longer been in use.
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.