King Abdullah Mosque, formerly Prince Abdullah Mosque and officially as the Mosque of King Abdullah bin Abdulaziz Al Saud, is a mosque in the al-Olaya district of Riyadh, Saudi Arabia, located on the 77th floor of the Kingdom Centre. Situated 183 meters above the ground level, it holds the Guinness World Record for being the most elevated mosque in the world. It was opened in 2003 and covers an area of 110 square meters. The mosque is named after King Abdullah bin Abdulaziz and its construction was primarily funded by Prince Al Waleed bin Talal.