Following a recent trip to Reykjavik we were inspired by the colourful corrugated iron houses, called bárujárnshús. Wide use was made of this cheap metal cladding in reconstructing the city following a devastating fire in 1915. When heavily insulated, this galvanised and corrugated iron over a timber or concrete framework provides a very durable building material in the harsh Icelandic climate. Reykjavik residents are then free to decorate their houses with an array of rich and distinctive colours. From the tallest local vantage point in the tower of Hallgrimskirkja church, the cityscape resembles a rainbow-coloured toy town.