The Lex building is a high-rise of government offices in the European Quarter of Brussels. It is an annex building of the Council of the European Union and is located at Rue de la Loi/Wetstraat 145.
Wikipedia https://en.wikipedia.org/wiki/Lex_building
Address 54 Etterbeeksesteenweg, Brussel 1040, Belgium
Coordinates 50°50'34.882" N 4°22'44.849" E