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
Institutional seats of the European Union a letter condemning the arrangement and the Strasbourg facilities. The following year Parliament voted 401 to 77 for a resolution demanding the right to decide its own working locations. Attempts to include this in the following treaties in 2000 and 2007 both failed. However, in September 2008 Parliament held its first full plenary session in Brussels after the ceiling of the Strasbourg chamber collapsed during recess forcing the temporary move. The unique architecture of the European Commission's Berlaymont building is utilised in its official emblem. Likewise, the official emblem of the European Council and Council of the European Union features