Ask Granny saved this article by Angela Rippon in the Guardian which described some of the best flea markets in Europe. The article was written a few years back, but her choices are just as important today.
A visit to the Paris flea market is also a must! (The most famous flea market in Paris is the one at Porte de Clignancourt, officially called Les Puces de Saint-Ouen, but known to everyone as Les Puces. )
http://www.guardian.co.uk/travel/2007/jan/09/top10.europe.flea.markets.shopping
