Go to Suleymaniye Cultural Details Centre. This center is undoubtedly an NGO managed by volunteers who also run In the Suleymaniye Mosque. They offer free details about Islam along with the Islamic society both In the mosque and of their Centre. They have a fascinating presentation about Islam and mosques. https://istanbulwork78901.izrablog.com/37425381/how-is-wordpress-is-free-can-save-you-time-stress-and-money