At the Vienna Woods' edge Kahlenberg looks out (484m): vineyards falling beneath you to the Danube with Vienna spread whole — and from this very summit the famous 1683 siege broke: history and view in one stand. Bus 38A climbs direct from Grinzing — or walk the famed vineyard descent to Nussdorf; the wine villages below keep their heritage air with fresh grape juice in autumn season; sunset into city lights makes Vienna's finest natural panorama.