The Famous Clock in London: Big Ben

The iconic clock tower at the north end of the Palace of Westminster is universally known as Big Ben—though technically that name belongs to the Great Bell inside. The tower, designed by Augustus Pugin and completed in 1858, houses the world's largest four-faced chiming clock. The bell was cast in 1856 and named after Sir Benjamin Hall, First Commissioner of Works. Today, Big Ben is one of London's most recognizable symbols and a top tourist attraction.