The Church of the God of Wisdom in Thessaloniki one of the oldest and most important Christian churches in the city is a historic listed monument and a UNESCO World Heritage Site The Church follows the type of transitional cruciform with dome and circumference In the interior a cruciform core is formed which is covered with a dome and surrounded by an aisle on 3 sides, while in the east a tripartite sanctuary is formed. the character of reversibility Upon completion of the project and through the restoration and enhancement of the upper floors of the monument, visitors, citizens as well as Greek and foreign tourists will have the opportunity to gain an improved understanding of the monument and the history of the city.