General Secretariat of the guests' program of the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud for Umrah and visit concluded the program on Sunday with a tour by the guests at the two exhibitions :"Architecture of the Two Holy Mosques" and "Madinah history". During the tour, the guests watched the main stages of development and expansion of the Prophet's Mosque since its establishment until now. They expressed their appreciation to the Custodian of the Two Holy Mosques King Salman bin Abdulaziz Al Saud for enabling them to pray at the Mosque of Prophet Mohammed (peace be upon him) and perform Umrah's rituals.