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
Strasbourg hotel, and featuring an open-air museum of international contemporary sculpture. The Jardin botanique de l'Université de Strasbourg (botanical garden) was created under the German administration next to the Observatory of Strasbourg, built in 1881, and still owns some greenhouses of those times. The "Parc des Contades", although the oldest park of the city, was completely remodeled after World War II. The futuristic "Parc des Poteries" is an example of European park-conception in the late 1990s. The "Jardin des deux Rives", spread over Strasbourg and Kehl on both sides of the Rhine opened in 2004 and is the most extended (60-hectare)