Portugal, Estremadura, Lisbon, Baixa, Praca Rossio with fountain and Statue of King Pedro IV in the centre of the square.

Portugal, Estremadura, Lisbon, Baixa, Praca Rossio with fountain and Statue of King Pedro IV in the centre of the square.

Portugal, Estremadura, Lisbon, Baixa, Praca Rossio, Statue of King Pedro IV in the centre of the square.

Germany, Saxony Anhalt, Lutherstadt Wittenberg, The Schlosskirche or Castle Church also known as All Saints Church, On 31st October 1517 Martin Luther posted his 95 theses here, In 1858, on the order...

Spain, Madrid, Statue of Philip IV of Spain with the Palacio Real in the background.

Spain, Madrid, Statue of Philip IV of Spain by Pietro Tacca.

Spain, Madrid, Statue of Philip IV to the left with the Palacio Real in the background.

Germany, Berlin, Alte National Galerie, Old National Gallery building housing a collection of 19th century European art with an equestrian statue of Frederick William IV out front.

Germany, Berlin, Alte National Galerie, Old National Gallery building housing a collection of 19th century European art with an equestrian statue of Frederick William IV out front.

England, Berkshire, Windsor, A heraldic plaque representing the kingdom at the time of King Henry IV 1406-1422 located on the bridge that spans the river Thames linking town to Eton

England, Berkshire, The highly prestigious private college at Eton was established almost six centuries ago by King Henry IV.

Mexico, Oaxaca, Monte Alban archaeological site, Ruins of Monticulo and Sistema IV buildings.