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Some clock towers have become famous landmarks. Prominent examples include Elizabeth Tower built in 1859, which houses the Great Bell (generally known as "Big Ben") in London, the tower of Philadelphia City Hall, the Rajabai Tower in Mumbai, the Spasskaya Tower of the Moscow Kremlin, the Torre dell'Orologio in the Piazza San Marco in Venice, Italy, and the Zytglogge clock tower in the Old City of Bern, Switzerland, the Hussainabad clock tower in Lucknow built in 1881 by Hussainabad trust on arrival of Sir George Couper, Lake town clock tower in Kolkata (also known as Big Ben of kolkata), Aberdeen clock tower in Port Blair, Andaman, India.