The Makkah Royal Clock Tower is the tallest clock tower in the world by far. The clock itself is massive with each clock face being 43 m (or 141 ft) in diameter, meaning that the clock can be seen for miles in every direction. This giant clock tower allows everyone in the city to have a close and convenient eye on the time at all hours of the day to aid in the multiple daily prayer times that are meant to be adhered to in the Islamic faith. The clock fulfills this function well.