Mecca is a city in the Hejaz and the capital of Makkah province in Saudi Arabia. The Kaaba is a small building and the holiest site in Islam located within the courtyard of al-Haram Mosque in Mecca. The Haram Mosque was built around it. All Muslims, wherever they are on Earth, pray five times a day in the direction of the Kaaba in Mecca. They must make a pilgrimage to Mecca, called The Hajj, at least once in their lives.