When I stepped out of my Frances Lodge, the first place I visited was the Windsor Castle. It is the oldest and largest occupied castle in the world. It is the royal residence of Windsor. The beautiful architecture and the protective walls dominate the landscape of this delightful city. If you want to visit the castle with the added bonus of not having to pay, then go to the 6 p.m. Prayer service, held every evening in St Georges Chapel. You can also enjoy the panoramic view of the Great Windsor Park with the Long Walk.