Lisbon Business Square, also known as Palace Square, is situated on the river Tejo and is known as one of the most beautiful squares in Europe. Because there is a statue of Joseph I riding horse in the middle of the square, because the horse body is black, the commercial square is also known as "Black Horse Square". The square is surrounded by a stock market trading center, a post office and an Augusta arch. When you go to the square to play, you should pay attention to your belongings. My son's wallet does not know when it was stolen. When reporting the case, the local police said that the square is often stolen.