The Kaaba, also spelled Kaʽba, Kaʽbah or Kabah, sometimes referred to as al-Kaʽba al-Musharrafa, is a stone building at the center of Islam's most important mosque and holiest site, the Masjid al-Haram in Mecca, Saudi Arabia. It is considered by Muslims to be the Baytullah and determines the qibla for Muslims around the world.