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 within the building. This was not the first such incident as bacteria causing Legionnaires has been discovered in the water system of the complex after a number of officials reported in ill. The bacteria had been allowed to develop due to the Strasbourg complex being used only four months of the year. The Pierre Pflimlin building (IPE 3), a heart-shaped, comparatively low building built on behalf of the SERS at the crossing of Avenue du Président Robert Schuman and Allée Spach, inaugurated in 1991 as a press and media center ("Centre de presse et d'information") at a cost of 38