For a couple of months each year, it’s possible to climb to the top of the ancient Round Tower inside Windsor Castle, with views all the way to London. Official blurb: Join a Conquer the Tower Tour to climb the 200 steps to the top of Windsor Castle’s iconic Round Tower. From a height of 65.5 metres, you can enjoy breathtaking views across the historic Windsor parkland, the Thames Valley, the London skyline, as well as the extent of Windsor Castle. The Round Tower can quite rightly be said to dominate the area. Combined ticket to Windsor Castle and the Conquer the Tower Tour:Adult: £42Young Person (18-24): £27.50Child (at least 1.3m tall): £21Disabled: £21Tickets are on sale now from here.