Braderie de Lille is a must-visit event for budget-conscious travellers. Taking place on the first weekend of September, this flea market is the largest in Europe, attracting millions of visitors each year. The streets of Lille are transformed into a giant open-air market, with vendors selling everything from antiques to clothing to food. The atmosphere is lively and festive, with music and street performers adding to the excitement. With so many bargains to be found, Braderie de Lille is the perfect place to shop for souvenirs and gifts without breaking the bank.