The architecture of London is represented by almost all styles from Normandy to postmodernism. Many medieval buildings, however, have not survived, mainly due to the Great Fire of 1666, which destroyed more than 13,000 buildings, and air bombs during the Second World War. William the Conqueror brought Normandy architecture to England. Among the Norman-style buildings in London is the Tower, which began to be built under William and was repeatedly completed by other kings. In addition, the Westminster Reception Hall, built-in 1097, was built in the same style. The 13th century was the century of the early English Gothic. One of the brightest examples of this style is Westminster Abbey. Other examples of this period have not survived in London. The early period was followed by an era of decorated English Gothic, but there are no examples of it in modern London, nor are there any examples of vertical Gothic architecture, the third Gothic period of English architecture. The architecture o