Using Athens city card is simple and straightforward, thanks to the city card guide that comes with it. Just purchase the card for the duration that best serves your needs. Note that there are also family and group tickets available. Then select from the Athens city card guide those attractions you find most fascinating and do not want to miss. The same city card guide tells you all you need to know about using the Athens city card, as well as about the individual sights it can be used to access.