The round Norman Keep (Round Tower) in Windsor Castle with the Queen's flag (Royal Standard) flying, Windsor, Berkshire, England, United Kingdom, Europe

photography horizontal color image travel destinations travel norman keep windsor castle castle fortress built structure architecture windsor berkshire england front view outdoors day cloud building round tower tower tree royal standard of the united kingdom queen's flag no people past history uk clouds cloudy daytime fort forts fortified fortification historic historical travel destination tourist destination tourist destinations nobody no one no person outdoor outside trees