The Kabaa, housing the "black stone".
Did you know Muslim tradition says the black stone was white as snow when it fell from heaven to show where to build the first temple, but it has turned black and broken from sinners touching it?
"And I tell you that you are Peter, and on this rock I will build my church, and the gates of Hades will not overcome it." - Matthew 16:18
"Jesus turned and said to Peter, 'Get behind me, Satan! You are a stumbling block to me; you do not have in mind the concerns of God, but merely human concerns.'” - Matthew 16:18
Muslims say they don't worship it, but they circle and kiss it.