Tzistarakis Mosque was built in 1759, by the Ottoman governor of Athens, Mustapha Agha Tzistarakis. According to tradition, Tzistarakis used one of the pillars of the Temple of Olympian Zeus to make lime for the building, although it is more likely that he used one of the columns of the nearby Hadrian's Library. This act led to his dismissal as the Turks considered it a sacrilege which would cause vengeful spirits to be loosened upon the city, a superstition that some Athenians believed to have been confirmed when there was an outbreak of the plague later in the year.
During the Greek War of Independence, the building was used as an assembly hall for the local town elders. After Greek independence, it was used in various ways: thus it was the site of a ball in honour of King Otto of Greece in March 1834, and was also employed as a barracks, a prison and a storehouse.
In 1915, it was partly rebuilt under the supervision of architect Anastasios Orlandos, and was used to house the Museum of Greek Handwork from 1918 until 1973. In 1966, it was provisionally refurbished to provide a place of prayer during the stay of the deposed King of Saudi Arabia, Saud, in the city.
In 1973, the main functions of the Museum of Greek Folk Art moved but the V. Kyriazopoulos pottery collection of ceramics remains in the mosque to this day.
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.