The Sunday flea market in Cologne is a trove of delights in a lovely setting along the banks of the Rhine. The stalls are an eclectic mix of architectural salvage, vintage clothes, porcelain, prints, tin signs, books, old phonographs, records and beer steins. The food stalls serve delicious bratwurst in crusty rolls, and the market is a mere stone’s throw from the gorgeous cathedral and the Früh Kölsch beer house (Am Hof 12-18). After all, market shopping is thirsty work.