The circular and dome roofed emblematic monument has a height of 29.80m, diameter 24.50m with the width of walls 6.30m. Architecturally it can only be compared to the Pantheon in Rome. Shortly after its construction it was converted into a Christian church dedicated to the Aghioi Asomatoi or the Archangels. It was the Metropolis of Thessaloniki from 1524 to 1591, when it was converted into a mosque by the Ottoman conquerors until the liberation of Thessaloniki in 1912. The Rotunda of st George is named after a small neighboring church. The dedication of the monument to Saint George is due to the neighboring, small, homonymous church. Today the Rotunda, with history of more than 1700 years, is at once a church and cultural-archaeological monument, in which the hum of tourists, the ecclesiastical liturgy and hosting cultural events are all combined, matching the monument's character and history.