Alaca Imaret Mosque or Ishak Pasha Mosque (literally the 'colourful mosque') was built by order of Ishak Pasha in 1484 or 1487. It consists of a mosque with an imaret (public charity kitchen). The mosque and imaret are not in use anymore. The mosque has a reverse T plan common to early Ottoman architecture, the prayer hall is covered by two large domes, it has a portico covered by five smaller domes. It had one minaret, which was destroyed after 1912, after Thessaloniki was liberated by the Greek Army and became part of the modern Greek state.
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.