Hey look, bicycle content! It's not mine, but it's pretty neat. The blog Bicycle Safari provides a globe-trotting (or Europe-trotting, at least) look at used, unused, abandoned, and wrecked bikes, with a particular focus on frame graphics, head badges, and unique or local vintage bicycle brands. There is also a tutorial on how to convert a vintage generator-driven headlamp into a battery-driven LED light, which seems useful.
See also the excellent Tel Aviv-based bicyclog for similar content and photos of obscure (Middle Eastern, Russian, and Soviet bloc, generally) old bikes on the street.