I can't imagine Segovia for 3 nights!However, it does give you the opportunity to visit La Granja,a short 10 mins bus ride from Segovia! I actually prefer to stay in La Granja, so often overlooked, rather than Segovia-a beautiful little town,wonderful palace with fabulous grounds- fountains, gardens and lots of little restaurants.
The best parador I have ever stayed in-take a peek inside!