Today we had virtually the entire day free prior to leaving London Heathrow at 9:00 p.m. so we took a jaunt to Windsor to check out the 900+ year old castle. The Queen was in residence (the flag was at full staff).
I (Chris) have never seen more tour busses parked up nearby or more visitors waiting to gain access. We had pre-booked our tickets and we still had to wait in line(s) for over an hour. Entrance would gain from a timed-entry system! There are three main attractions: State Apartments; Queen Mary’s Dolls’ House; and St. George’s Chapel. Only one (State Apartments) was open! All in all, not really worth the bother.
Gateway 
Moat and Tower 
Another Gateway 
Great Hall 
High Security Detail 
Ready to Depart