If your trip to Lewes is all sorted out but your itinerary is looking a bit empty, let us give you a few hints and tips.University of Sussex is a notable attraction in this impressive city. Swing by and find out what all the hype is about.Plan a stop at Glyndebourne Opera House. It's one sight you'll usually find on many visitors' must-do lists. If you still have space on your schedule, Lewes Castle and Monk's House will keep you entertained as well.