Out of the Mirabel Palace, across the concentric lock bridge to the old city "grain alley". The busiest shopping street in the old city is also Europe's most unique scenery of the Middle Ages. It used to be a food trading place, with narrow and winding streets lined with shops of all kinds. The most interesting thing is the unique iron art signboards on both sides of the street. They have various designs and deserve to be appreciated carefully. At lunchtime, there are many restaurants to choose from on this street. Choose the first restaurant in Saburg "China Building" which is introduced online. The food is fresh and the price is fair. The lunch buffet is only 10 euros per person. After lunch, the preferred attraction is No. 9 Food Hutong "Mozart's former residence".