Ramadan Day 12 – Makkah – Giant green clock Posted on August 13, 2011 by Roomi Giant Green Clock in Makkah (Mecca) “Approximately 2,000 feet (ft) high, each clock face is 151 ft in diameter (Big Ben’s in London are 23 ft), illuminated by 2 million LED lights, visible from 18 miles away.” Share this:TwitterFacebookLinkedInRedditEmailPrintLike this:Like Loading... Related