Austria, Vienna, the colourful Hundertwasserhaus apartment block, built from the idea and concept of Austrian artist Friedensreich Hundertwasser with architect Joseph Krawina as a co-creator.

Austria, Vienna, the colourful Hundertwasserhaus apartment block, built from the idea and concept of Austrian artist Friedensreich Hundertwasser with architect Joseph Krawina as a co-creator.

Austria, Vienna, the colourful Hundertwasserhaus apartment block, built from the idea and concept of Austrian artist Friedensreich Hundertwasser with architect Joseph Krawina as a co-creator.

Austria, Vienna, Stephansdom or St Stephens Cathedral, Close up view of the colourful roof tiles from the South Tower.

Austria, Vienna, Stephansdom or St Stephens Cathedral, View from the South Tower with Vienna in the background and the dome of Peterskirche and spires of the Votivkirche prominent..

Austria, Vienna, Stephansdom or St Stephens Cathedral, View of the colourful roof tiles from the South Tower with Vienna in the background.

Italy, Rome, The Colosseum amphitheatre built by Emperor Vespasian in AD 80 with the interior thronged with tourists.

Italy, Rome, The Colosseum amphitheatre built by Emperor Vespasian in AD 80 with the interior thronged with tourists.

Italy, Rome, View from the terrace of the Vittorio Emanuele 2nd Monument.

Italy, Rome, View of the Roman Forum from Capitoline Hill with ruins of the Arch of Septimus Severus and the Temple of Saturn prominent.

Italy, Vatican City, St Peters Square with the facade and dome of St Peters Basilica beyond a streetlamp.

Ireland, County Waterford, Dromana Gate, Hindu Gothic Gate built to greet the owner of the Dromana Estate Henry Villiers-Stuart and his wife Theresia Pauline Ott of Vienna on returning from their ho...