Knock three times and ask for Dr Who...

Police Boxes in this country were first introduced in Glasgow in the 1890's. Edinburgh's boxes were relatively large, and were of a rectangular plan, with a design by Ebenezer James MacRae, who was inspired by the city's abundance of neoclassical architecture. At their peak there were 86 scattered around the city. In 2012, Lothian and Borders Police sold a further 22, leaving them owning 20.

Many are now - like this one at Bruntsfield Links - providing an opportunity for would-be retailers.