Albania, Tirane, Tirana, Colourful apartment buildings.

Albania, Tirane, Tirana, Angled view of balconies, striped awnings and satellite dishes on blue painted exterior facade of apartment block.

Albania, Tirane, Tirana, Colourful apartment building with shuttered windows and air conditioning units.

Albania, Tirane, Tirana, colourful apartment building.

Austria, Vienna, Detail of the roof of Stephansdom Cathedral.

Austria, Vienna, Hundertwasser-Krawinahaus colourful exterior.

Austria, Vienna, Hundertwasser-Krawinahaus colourful exterior.

Austria, Vienna, Haas Haus modern glass fronted building.

Austria, Vienna, UNO City in the Donau City district.

Portugal, Lisbon, Arches in Praca do Comercio.

France, Ile de France, Paris, Rambateau, Place Georges Pompidou, Part of the industrial design stylish restaurant at the top floor of Pompidou museum.

Japan, Tokyo, Ginza, part of the facade of the new Mikimoto Building with distinctive windows.