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 Clementinum is a historic complex of buildings in Prague. Until recently the complex hosted the National, University and Technical libraries, the City Library also being located nearby on Mariánské Náměstí. The Technical library and the Municipal library have moved to the Prague National Technical Library at Technická 6 since 2009. It is currently in use as the National Library of the Czech Republic.
Its history dates from the existence of a chapel dedicated to Saint Clement in the 11th century. A Dominican monastery was founded in the medieval period, which was transformed in 1556 to a Jesuit college. In 1622 the Jesuits transferred the library of Charles University to the Klementinum, and the college was merged with the University in 1654. The Jesuits remained until 1773, when the Klementinum was established as an observatory, library, and university by the Empress Maria Theresa of Austria.