The Peace Tower is a focal bell and clock tower sitting on the central axis of the Centre Block of the Canadian parliament buildings in Ottawa, Ontario. The present incarnation replaced the 55-metre (180 ft) Victoria Tower, after the latter burned down in 1916, along with most of the Centre Block; only the Library of Parliament survived. It serves as a Canadian icon and had been featured prominently on the Canadian twenty-dollar bill, directly adjacent to the depiction of Queen Elizabeth II, until the change to polymer.