Paying a visit to the Oude Markt is like pulling up a chair at the longest bar in Europe, because nowhere else can you find as many catering establishments in one place as on this unique square. No wonder the Oude Markt is Leuven’s meeting place par excellence, particularly in warm weather when the numerous terraces quickly fill up.Oude Markt. Paying a visit to the Oude Markt is like pulling up a chair at the longest bar in Europe, because nowhere else can you find as many catering establishments in one place as on this unique square. No wonder the Oude Markt is Leuven’s meeting place par excellence, particularly in warm weather when the numerous terraces quickly fill up.