The red telephone box, a telephone kiosk for a public telephone designed by Sir Giles Gilbert Scott, was a familiar sight on the streets of the United Kingdom, Malta, Bermuda and Gibraltar. Despite a reduction in their numbers in recent years, the traditional British red telephone box can still be seen in many places throughout the UK, and in current or former British colonies around the world. The colour red was chosen to make them easy to spot.
The red phone box is often seen as an iconic British symbol throughout the world. - in: wikipedia
Broad Street, Convent Garden.
A row of classic telephone boxes by Giles Gilbert Scott, who won a competition to design a kiosk held by the Post Office in 1924. The 1926 K2 box was made from cast iron painted in red (although Scott has specified mild steel, painted silver with greenish-blue interior).