Germany, Berlin, Mitte, Potsdamer Platz, Section of the former Berlin Wall.

Germany, Berlin, Mitte, Potsdamer Platz, Section of the former Berlin Wall.

Vietnam, Hanoi, Mopeds waiting at a traffic intersection.

Poland, Warsaw, Centrum, Busy roundabout with cars and trams.

Spain, Catalonia, Barcelona, Placa de Mossen Jacint Verdaguer monument on the intersection of Passeig Sant Joan and Avinguda Diagonal.

Spain, Catalonia, Barcelona, Placa de Mossen Jacint Verdaguer monument on the intersection of Passeig Sant Joan and Avinguda Diagonal.

England, Surrey, Dorking, Leith tower, Aerial view over pathway intersection.

England, Surrey, Dorking, Leith tower, Aerial view over pathway intersection.

England, Surrey, Dorking, Leith Tower with walkers in mid winter.

USA, Florida, Key West, Sloppy Joes Bar on Duval Street where Ernest Hemingway was a regular customer when he lived at Key West in the 1930s.

Environment, Air, Pollution, Sign asking motorists to switch of engines at railway level crossing.

Environment, Air, Pollution, Air quality monitor at busy traffice intersection.