The 600m skyscraper in Saudi Arabia is one of the most expensive buildings ever constructed and features the world's biggest ...

the Mecca Clock, located on the iconic Abraj Al Bait Clock Tower. This engineering marvel is part of one of the tallest buildings in the world, standing at an impressive height of 601 metres.

Originally, it was conceived simply as a clock tower, albeit with the most modern and technologically advanced turret clock of its time. The Victorians did not plan for thousands of visitors to climb ...

Thursday marks the 160th anniversary of when Big Ben began striking the hour, on 11 July 1859. The Great Bell forms part of the Great Clock in the Elizabeth Tower - commonly known as Big Ben.