Kaba is considered by Muslims as the first house of worship built by Prophet Abraham for the sole worship of Allah(Arabic for God)\n\nQuran says\n"Most surely the first house appointed for men is the one at Bekka, blessed and a guidance for the nations. " 3: 96.  \n\n"And when Ibrahim and Ismail raised the foundations of the House: Our Lord! accept from us; surely you are the Hearing, the Knowing: " Quran 2:127.\n\nIt is a large cubical building structure and has been renovated few times in its history.