Kaaba
    Kaaba, the central shrine of Islam, a cube-shaped, one-room stone structure in Mecca, Saudi Arabia. It already attracted pilgrimages as the most important sanctuary (haram) in pre-Muslim Arabia, and the traditional belief that it was built by Abraham and Ishmael (to whom the Arabs trace their descent) was confirmed by the Quran (Koran). The annual pilgrimage to the Kaaba takes place in the first ten days of Dhu al-Hijja, the last lunar month of the Islamic calendar. The Black Stone set on the outside of one corner of the structure is solemnly kissed by all pilgrims who can gain access to it. Lesser pilgrimages are performed throughout the year.