The Kaaba, also spelled Ka'bah or Kabah, sometimes referred to as al-Kaʿbah al-Musharrafah, is a building at the center of Islam's most important mosque, the Masjid al-Haram in Mecca, Saudi Arabia. It is the most sacred site in Islam. It is considered by Muslims to be the Bayt Allah and is the qibla for Muslims around the world when performing salah.