Cannabis Ruderalis October 12, 2016 thcscience_admin Trunk road in Greece Greek National Road 81 (Greek: Εθνική Οδός 81, abbreviated as EO81) is a single carriageway road in Attica, Greece. It connects the northern suburbs of Athens with Kalamos, near the north coast of Attica. National Roads and Motorways in GreeceMotorwaysHighway sign in Greece A1 A11 A2 A24 A25 A27 A29 A3 A5 A52 A6 A62 A64 A642 A65 A7 A71 A8 A90National RoadsNational Road sign in Greece EO1 EO2 EO3 EO4 EO4a EO5 EO6 EO7 EO8 EO8a EO9 EO12 EO13 EO14 EO15 EO16 EO16a EO17 EO18 EO20 EO21 EO22 EO23 EO24 EO25 EO26 EO27 EO29 EO30 EO31 EO33 EO34 EO35 EO36 EO38 EO39 EO42 EO44 EO48 EO50 EO51 EO53 EO54 EO55 EO56 EO57 EO59 EO62 EO63 EO64 EO65 EO66 EO67 EO68 EO69 EO70 EO74 EO75 EO76 EO77 EO79 EO81 EO82 EO83 EO85 EO86 EO87 EO89 EO90 EO91 EO95 EO97 EO99 Thessaloniki Ring Road (EO111) EO111 (antebellum numbering) 38°15′52″N 23°51′33″E / 38.2644°N 23.8591°E / 38.2644; 23.8591