Windsor is famous above all for its spectacularly sited castle, which (like the Tower of London) dates back to the time of William the Conqueror and has been continuously occupied since the 11th century. It has been enlarged and remodelled many times, though it took on its basic present shape in the 12th and 14th centuries. The largest occupied castle in the world is both a private home, where the Queen usually spends weekends, and a Royal residence, for ceremonial duties from State Visits to investitures, such as the Order of the Garter ceremony.
The most impressive of all the castle buildings is St George’s Chapel, a masterpiece of English Gothic architecture, completed in 1511. Ten monarchs lie here, including Henry VIII and Charles I. The state apartments are hung with works from the Royal Collection, though the most startling exhibit is Queen Mary’s Doll’s House. Made in 1921 for the consort to King George V, it was designed in meticulous detail at one-twelfth life-size with working plumbing and elevators, and miniature paintings and books donated by eminent writers and artists of the day.
Windsor town is a busy shopping centre but you can escape the crowds by exploring Windsor Park, perfect for a picnic.
The Old Booking Hall, Windsor Royal Station 
01753 743900 
Mon–Fri, Sat 10–5, Sun 10–4. Extended hours in summer
Windsor Castle
Entrance on Castle Hill 020 7766 7304; 24-hour recorded information 01753 831118 Mar–Oct daily 9:45–5:15; Nov–Feb 9:45–4:15. St George’s Chapel open Mon–Sat; services only on Sun. Castle/apartments are occasionally closed; reduced admission on these days 
Very expensive