http://www.ivebeenthere.co.uk/ Welcome to Been there. Your tips on the places you know - that you love, live in or have just visited - are what make this guide. http://www.ivebeenthere.co.uk/tips/18170 Other tours including trams are not on/off but 1-2 hours in duration. €17
Most city bus/tram tours including Aerobus (airport to city) for 48 hours costs 30€.
Save a lot of time and money and buy at the aairport (at the post office) as many passes are not on buses and only at metro stations.]]> http://www.ivebeenthere.co.uk/tips/18170