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.
Otel.com: This Lisbon quarter is where you'll find traces of the city's past, with Arab and Roman influences. The medieval alleys and residential neighborhoods are some of the best ways to see the old Lisbon.