 | www.stasy.gr | Urban Rail Transport S.A. |
 | www.yme.gr | Greek Ministry of Infrastructure and Transport |
 | www.espa.gr | The National Strategic Reference Framework |
 | et.diavgeia.gov.gr/f/attikometro | Diavgeia |
 | www.ggde.gr | Directorate General of Public Works |
 | www.astynet.gr | Unification of the Archaeological Sites of Athens |
 | www.cityofathens.gr | Municipality of Athens |
 | www.culture.gr | Greek Ministry of Culture |
 | www.thessalonikicity.gr | Municipality of Thessaloniki |
 | www.aia.gr | Athens Airport – Eleftherios Venizelos |
 | www.aodos.gr | Attiki Odos |
 | www.egnatia.gr | Egnatia Odos |
 | www.gefyra.gr | Rion – Antirrion Bridge |
 | www.athens-trolley.gr | Electric Company of Transports |
 | www.breathtakingathens.com | The city of Athens official visitors’ website |
 | www.ergose.gr | Subsidiary Company of the Hellenic Railways Operation (ERGOSE S.A.) |
 | www.oasa.gr | Athens Urban Transport Organization (OASA) |
 | www.poas.gr | Panhellenic Federation of Urban Transport |
 | www.ethel.gr | Hellenic Thermal Busses |
 | www.isap.gr | Athens Piraeus Electric Railways |
 | www.ose.gr | Hellenic Railways Organization (OSE) |
 | www.proastiakos.gr | Suburban Railway |
 | www.oasth.gr | Organization of Urban Transportation of Thessaloniki |
 | www.ktel.org | Interurban Busses (KTEL) |
 | www.tramsa.gr | TRAM S.A. |
 | www.tfl.gov.uk | Transport of London |
 | www.m.dk | The Copenhagen Metro |
 | www.metromonorail.com.au | The Sydney Metro |
 | www.metroroma.it | MetroRoma |
 | www.tokyometro.jp | The Tokyo Metro |
 | www.mta.nyc.ny.us | The New York Metro |
 | www.itsmarta.com | Metropolitan Atlanta Rapid Transit Authority |
 | www.tmb.net | The Barcelona Metro |
 | www.parismetro.com | The Paris Metro |
 | www.fakeisthenewreal.org | Subway Systems of the World |