Once a year, usually on a Saturday in May (around Europe Day on 9 May), the European Council and the Council, along with the other EU institutions in Brussels, welcome the public to their Open Day.
Uair sa bhliain, agus is iondúil gur Satharn i mí Bealtaine a bhíonn i gceist (thart ar Lá na hEorpa a bhíonn ann an 9 Bealtaine), cuireann an Chomhairle Eorpach agus an Chomhairle, chomh maith le hinstitiúidí eile an AE sa Bhruiséil, fáilte roimh an bpobal chuig a Lá Oscailte.