The White Tower, Tower of London, is a defensive structure, built by William the Conqueror and finished by his sons and successors, William Rufus and Henry I. It is 90 feet high and 15 feet thickness at the base to almost 11 feet in the upper parts.
Keywords: United Kingdom, England, Windsor and Maidenhead, Windsor, fortifications, towers, single built works. Contributed by Matthew Canterna.