The Ka'aba (literally "the cube" in Arabic) is an ancient stone structure that was built and re-built by prophets as a house of monotheistic worship. It is located inside the Grand Mosque in Mecca, Saudi Arabia. The Ka'aba is considered the center of the Muslim world, and is a unifying focal point for Islamic worship.
Description:
The Ka'aba is a semi-cubic building that stands about 15 meters high and 10-12 meters wide. It is an ancient, simple structure made of granite. In the SE corner, a black meteorite (the "Black Stone") is embedded in a silver frame. Stairs on the north side lead to a door which allows entry to the interior, which is hollow and empty. The Ka'aba is covered with a kiswah, a black silk cloth which is embroidered in gold with verses from the Qur'an. The kiswah is re-done and replaced once a year.