Holy Kaaba is the most sacred and important place for the Muslims on earth. It is said that this place never sleeps and this fact is quite true. There is absolutely no concept of night and day in the house of Allah Almighty because millions of Muslims do Tawaf around the Kaaba 24 hours a day as Kaaba is the heart of Saudi Arab and the most holy place for all the Muslims. Although there are many important facts about the sacred Kaaba which is known by the Muslims but still there are some unknown facts which Muslims often don’t know. These interesting and unknown facts about Kaaba are mentioned here.