Big Ben, also known as Big Ben, is a big clock on the bell tower at the north end of the British Parliament Building. It was built on the Thames River in 1858 and is nearly 100 meters high. Almost every visitor to Britain will come here for a group photo. It has also become one of London's landmarks. The bell tower rings every fifteen minutes, giving off the classic melodious Westminster bell, and at the same time sounds a deeper resonance bell. Now, the bell tower also has a beautiful name, Elizabeth Tower, to commemorate the 60th anniversary of the Queen's accession to the throne. The famous Big Ben is the symbol of the Parliament Building. Visitors will take pictures with the Parliament Building and Big Ben on Westminster Bridge.