New prayer halls on the ground and first floors are complete and ready to accommodate the millions who now make the journey of a lifetime to the Holy City of Makkah, and a sophisticated broadcasting network has been installed to cope with the additional requirements. Indeed, the safety and comfort of the Hajjis has become a major concern for the authorities, necessitated by their sheer volume in recent years. The newly laid floor tiles were made of specially developed heat-resistant marble, and further to ensure the comfort of worshippers the whole structure is cooled by one of the world’s largest air-conditioning systems.