The document summarizes various costs of living in Barcelona, Spain, including housing, food, transportation, leisure activities, and going out. Renting a flat in the city center costs around €1,000 per month. A meal at a traditional restaurant for four people is about €50, while a meal at McDonald's for one person is around €3.50. Public transportation costs €47.90 per month for students, and flights to nearby cities like Paris and London are around €58 and €40 respectively. Common leisure activities such as visiting museums, the cinema, or concerts range in price from €1.50 to €70.