Düsseldorf has a lively flea market scene. The most popular is the Saturday market at Aachener Platz, a good-sized outdoor market where vendors sell vintage furniture, vinyl records, clothing, books, and general bric-a-brac. It runs weekly and draws both serious dealers and casual browsers from across the city.
The monthly Radschläger-Markt on Ulmenstraße is larger and more festive, with food stalls, live music, and a broader range of goods. For antiques and collectibles, the specialist dealers concentrated in Karlstadt to the south of the Altstadt are worth checking before the weekend markets.