I visited this WHS in June 2015. I drove from Segovia and spent a whole day here. I parked my car for free just before the city proper at a famous panoramic viewpoint called Los Cuatro Postes. From here the magnificent city walls can be seen very well and they are just a short walk downhill. While crossing the small bridge to get to the city I spotted several song birds and frogs and since it was a lovely day I decided to hike around the whole city to take in the city walls. You can also go on the city walls themselves but in my opinion the best views are from beneath the walls not on them. The church which is dedicated to St Teresa is worth visiting as are the imposing city gates and minor churches. I enjoyed my visit even though there are similar WHS on the list such as Provins and Carcassone. The city is quite touristy and it reminded me of Obidos, a non-WHS I visited recently in Portugal.