Visit to Bolgar by experts of the International Center for the Study of the Preservation and Restoration of Cultural Property Mr Stefano De Caro, Mr Munir Bushenaki, delegation from Central Macedonia (Greece) represented by Vice-governor of Central Macedonia Mr Kostas Karapanagiotidis, chief of UNESCO Greece department for preservation of architectural monuments Mr Avraam Georgievich Kassiteridis and Tatarstan's State Counselor Mintimer Shaimiev