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
Seat of the European Parliament in Strasbourg and the 1950s buildings of the Strasbourg fair, some of which had to be torn down to make way for the "Immeuble du Parlement européen 4", its formal name. Built at a cost of 3.1 billion French francs (470 million euros) at the intersection of the Ill and the Marne-Rhine Canal, it houses the hemicycle for plenary sessions, the largest of any European institution (750 seats – expanded to 785 – for MEPs and 680 for visitors), 18 other assembly rooms as well as a total of 1,133 parliamentary offices. Through a covered footbridge over the Ill, the Louise Weiss