Ohlsdorf Cemetery is the fourth-largest cemetery in the world. Most of the people buried at the cemetery are civilians, but there is also a large number of victims of war from various nations. It was established in 1877 as a non-denominational and multi-regional burial site outside of Hamburg. The cemetery has an area of 391 hectares (966 acres) with 12 chapels, over 1.5 million burials in more than 280,000 burial sites and streets with a length of 17 km.
During World War I over 400 Allied prisoners-of-war who died in German captivity were buried here in, as well as sailors whose bodies had been washed ashore the Frisian Islands. In 1923 the remains of British Commonwealth servicemen from 120 burial grounds in north-western Germany were brought to Hamburg. Further dead Commonwealth soldiers of World War II and of the post war period were buried here too.
There are six memorial sites for the victims of the Nazi era. The remains of some 38,000 victims of Operation Gomorrha, the bombing campaign that took place from July 24 to August 3, 1943, lie in a cross-shaped, landscaped mass grave.
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.