A nice cover from Poland, depicting 3 nice stamps on topic "Capital cities of the European Union". The three capitals are Rome (Italy), Valletta (Malta) and Berlin (Germany).
The historic centre (Old Town) of Rome and Valletta are also inscribed as Unesco World Heritage place since 1997.
Founded, according to legend, by Romulus and Remus in 753 b.C., Rome was first the centre of the Roman Republic, then of the Roman Empire, and it became the capital of the Christian World in the 4th century.
The capital of Malta was ruled successively by the Phoenicians, Greeks, Carthaginians, Romans, Byzantines, Arabs and the Order of the Knights of St. John's. Valletta's 320 monuments, all within an area of 55 há, make it one of the most concentrated historic áreas in the world.