Abraj Al Bait

Abraj Al Bait, also known as the Clock Towers, is a government owned hotel complex of seven skyscraper hotels in Mecca, Saudi Arabia, part of the King Abdulaziz Endowment Project intended to modernize the city for its pilgrims. Its central hotel tower, the Mecca Royal Clock Tower, is the fourth tallest building and sixth tallest freestanding structure in the world, and according to Guinness World Records it carries the tallest clock tower in the world, with the largest clock faces in the world and a Clock Tower Museum occupying its top four floors; the complex of seven buildings is also, by cost, the world's second most expensive building.