If your trip to Sintra is all booked but your itinerary is a little on the empty side, let us give you a few hints and tips.While you're wandering around the neighborhood, keep a lookout for Quinta da Regaleira and Sintra National Palace. There's plenty to do at these marvelous attractions.Give that rental car a breather and start using those legs. Not far from this neighborhood's center, Castle of the Moors is worth a look. More adventure awaits at Chalet da Condessa D'Edla and Sao Martinho Church, which are also a stone's throw away.