The Zappeion is a palace-like building in the National Gardens of Athens in the heart of Athens. It is generally used for meetings and ceremonies, both official and private. The cornerstone was laid in 1874. Designed by Danish architect Theophil Hansen, it was finally opened in 1888.
Zappeion was used during the 1896 Summer Olympics as the main fencing hall. A decade later, at the 1906 Intercalated Games, it was used as the Olympic Village. It served as the first host for the organizing committee (ATHOC) for the 2004 Games from 1998 to 1999 and served as the press center during the 2004 games. In 1938, the Athens Radio Station, the country's first national broadcaster, began operating in the premises.
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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.