Abraj Al-Bait Towers, Mecca, Saudi Arabia
Located in the city of Mecca, this clock is very new compared to the others on this list. Completed in 2012, Abraj Al-Bait holds two records: the world's tallest clock tower (over 1,900 feet) and the world's largest clock face (each of the four faces has a diameter of 151 feet). Each face is illuminated with LED lighting. Under the clock there is a large observation deck where people can see panoramic views of this famous Arabian city, including the Grand Mosque, one of Islam's most sacred sites.