Bahrain's King Hamad bin Isa Al Khalifa left Riyadh today after a visit to the Kingdom during which he attended the inauguration ceremony of 23rd session of National Festival for Heritage and Culture. At King Khalid International Airport, the Bahraini King was seen off by Prince Salman bin Abdulaziz, the Governor of Riyadh region; Prince Naif bin Salman bin Abdulaziz, and a number of officials.