I was only in Lisbon for 15 hours, Ana greeted me at Oriente station, checked me in, and explained the metro. She took the time to In the 15 hours I was able to get to the old town in 20 minutes using the metro. In the morning I walked to the airport about 1km. The metro also takes you to the airport. Great access to all areas of the city. Overall it was a great stay!