Canterbury Cathedral is pricey to enter but it's an absolute stunner so worth every penny, and of course your money is helping to preserve this World Heritage Site. And every time you visit you're aware of how much this costs because there's always work going in. At the moment the exterior is being cleaned and the parts that are already done are beautiful. If your mobility is impaired you can't access everywhere. There's nothing that can be done about that because of the pilgrom steps, but an underpass gets you to the spot where Thomas Becket was murdered and a film show helps. TOP TIP: if you're looking to book accommodation try Canterbury Cathedral Lodge and you'll get a pass to go into the Cathedral as often as you wish.