It is an emblematic walk of the city of Barcelona that runs between the square of Catalonia, principal center of the city, and the old port. The walk is full of people by day and late into the night. It is dotted with newsagents, flowers and others for deciding to replace the old stands of small animals, street performers, coffee shops, restaurants and shops. Near the port, they usually install flea markets, as well as painters and artists. Strolling along La Rambla you can see several buildings of interest, such as the Palace of the Virreina, as well as the market of La Boqueria and the famous theater of the Liceo in which operas are represented. Formerly in the current Rambla the river d’en Malla passed through, that went down the current street Balmes and down the current Rambla to end at some point between the current plaça del Duc de Medinacelli and plaça de la Mercè. With the construction of the wall of the Raval in the 15th century the river was diverted.