The Hajj: It's one of the biggest gatherings in the world, with millions of Muslims from everywhere making the pilgrimage to the city of Mecca – but what's it about, anyway? | AJ

Kaaba is one of the oldest religious sites in the world. Long before Prophet Muhammad (S.A.W), Ibrahim and Ismail (AS) are believed to have built it on God's command. It was attacked by invaders multiple times but it stands tall as the world's biggest pilgrimage site even today. Here's a brief history of Kaaba, the holiest mosque of Islam. | Naya Daur Videos