Languages of the European Union which is understood by 51% of all adults, while German is the most widely used mother tongue, spoken by 18%. All 24 official languages of the EU are accepted as working languages, but in practice only two – English and French – are in wide general use and of these English is the more commonly used. French is an official language in all three of the cities that are political centres of the Union: Brussels (Belgium), Strasbourg (France) and Luxembourg City (Luxembourg). , the official languages of the European Union, as stipulated in the latest amendment of "Regulation No 1
European institutions in Strasbourg freedom, security and justice (eu-LISA) has his operational HQ in Strasbourg. Finally, Strasbourg also hosts the association Apollonia (created in 1998), which defines itself as "a platform of cooperation in the area of the visual arts between European countries and, more specifically, with the countries of Central and Eastern Europe, the Balkans, the countries along the Baltic Sea and in the South Caucasus." The association was created on the basis of work conducted since 1994 by the Council of Europe within the framework of the Program of European Artistic Exchanges. Twenty institutions have their sole, or one of their main,