OpenStreetMap
The map in the centre of Munich is bugging me a bit but I haven't been able to figure out how to fix it.
osm.org/?lat=48.13632&lon=11.59109&zoom=16&layers=B000FTF
The river north of the Maximiliansbruecke is the right width but south of the bridge it becomes pencil thin and the island (Praterinsel) is the wrong shape compared to the aerial photography (although the outline of the island is drawn correctly if I look in Potlatch). I suspect this is something to do with multipolygons for the riverbank?
Discussion
Comment from Ævar Arnfjörð Bjarmason on 11 June 2009 at 10:34
It's like that because a https://wiki.openstreetmap.org/wiki/Tag:waterway=riverbank area is missing in places.
It also needs cleanup for other reasons, for instance the ways for the suburbs Lehel and Haidhausen don't share nodes at their edges.