Portugal's flag features red and green colors with the Portuguese coat of arms pictured between them. The coat of arms represents Portugal's victory over five Moorish kings. Lisbon is Portugal's capital and largest city, known for its importance in finance, commerce, media, entertainment, arts, international trade, education and tourism. Additional facts about Portugal include a population of over 10 million, Portuguese and Mirandese as the official languages, and the euro as the currency. Barreiro is a municipality in southern Portugal with a population of around 78,000 located on the Tagus River across from Lisbon known for its beaches, footbridges, and parks.