Brussels European Quarter. The area is home to most of the institutions of the European Union is commonly known as the European Quarter in Brussels or in French Quartier Européen. Parliament The neighborhood was a residential area before becoming a key location for European Community policy. Large buildings are framed by three green areas east of the city, the Park of Brussels, Palais du Cinquantenaire Park and Leopold. One of the most representative buildings of the European Union is called Berlaymont. This building, with an X-shaped plant and fourteen stories high, was built in 1967 as the seat of the European Commission. A MAN WALKS ALONG WITH SOME POSTERS OF EURO