If your trip to El Escorial is all organized but your travel itinerary is a little on the empty side, we can give you a helping hand.Plan a stop at Royal Monastery of San Lorenzo de El Escorial. It's one sight you'll find on most visitors' to-do lists. If you still have space on that travel schedule, Church of San Bernabe and El Real Coliseo de Carlos III Theater will keep you amused as well.