Information is also readily available world-wide in most travel agents and bookstores.
For any further questions you will find the staff at the GNTO offices in Athens and in many major tourist resorts throughout Greece, very helpful. The public transportation network includes trolley-buses, a large number of buses connecting different areas of Athens and its suburbs, and an underground electric railway. They can be used on all local buses. The electric railway is, by far, the quickest means of transportation. Presently, there is only line in operation, namely the line connecting Piraeus to Kifissia via Omonia square.