I didn’t see any major road junctions in Helsinki, but in Turku I saw the intersection of the 8, 9, and 10 national routes. There was a Grand Renumbering of the pan-European E-route system in the early 1990s, in which nearly all the numbers changed, so the main route from Turku to Helsinki that I remembered as the 1-3-E3 is now the E18 (and there’s now a freeway bypass of part of the old route). Similarly, the 5-9-E80 route south of Kuopio is now the E63. The dashed border around the route number is European for “to”. West of here, the E63 ends at Turku Harbor, but the E18 takes a ferry across the Gulf of Bothnia to Stockholm and Oslo. The E63 continues northeast from Turku to Kuopio, then north into Lapland, ending at Sodankylä, while the E18 continues east from Helsinki to St. Petersburg.