Station Pisa Centrale
From the airport to the station it takes less than a 15 minute journey, and you can arrive by bus, and for one euro. Here, you have the possibility of taking a train to Florence which takes an hour or more stopping at Empoli. Before you have the chance to take a look at the Piazza dei Miracoli, to see the famous Leaning Tower, the trip is about 20 minutes walking. If you have to spend the night near the station I recommend the hotel NH Cavalieri.