Nuno Geraldes Barba: Ask for the prego do lombo or the croquetes if you want something salty. If you're craving for sweets, the Lingua de Veado is the best in Lisbon!!
Maragitado: FNAC always has the latest books, records, cameras, computers, TV's, gadgets. everything! It's a great place to go, they also have live music shows sometimes, FNAC is a great place to be!
Otel.com: The beautiful Saint George Castle is where you'll get a glimpse of Lisbon's history as well as get amazing views of the city and the Tagus River. Pay close attention to the amazing Ogival House.