"According to Islamic beliefs, the first mosque in the world was the Kaaba, whose existing foundation was raised up by Prophet Ibrahim, assisted by his son Prophet Ismail, upon an order from God. The site of the Kaaba is also believed to be the place where a tent was erected by angels for Adam and Eve to use for worship. The oldest mosque built by Muslims is the Quba Mosque in Medina. When Muhammad lived in Makkah, he viewed Kaaba as his first and principal mosque and performed prayers there together with his followers..."