Alaca Imaret

The Basilica of St. Demetrius is a church founded on the site of the Roman baths in the 4th century. After earthquakes and fires in the 7th century, a new basilica was erected. During the Turkish reign, in 1493, it was transformed into a mosque "Kasımiye Camii", until the return of the city in Greece in 1912. During a fire in 1917, the building was badly damaged. The restoration works of the basilica began in the 30s and continued until 1948. In 1988, the basilica was inscribed on the list of World Heritage sites along with other "Paleochristian and Byzantine monuments of Thessaloniki" .

The church of Panagia Acheroizitis is an extremely well preserved paleochristian basilica. Built in the fifth century on Roman baths, this church was the first to be converted into a mosque around 1430 under the name "Eski Camii" and was used as such until 1930. It is a World Heritage Site. Since 1988

The church of Panagia Chalkeon, often called "red church", is a Byzantine church built in the 11th century on an old pagan house of worship. Two events affected the church in the twentieth century: a fire in 1917 and an earthquake in 1932, which caused considerable damage and led to the restoration of the Panagia Chalkeon. It is now a UNESCO World Heritage Site as a Byzantine monument in Thessaloniki.