Sony has created a limited edition run of the Xperia Z3 series, where the back of the handsets feature an engraved illustration inspired by three cities. The “Stadt Talente” project invited three artists to choose their favourite cities using the Xperia Z3 series as their canvas.
The Xperia Z3 features an illustration from Vesa Tapani Sammalisto representing Berlin. Shinpei Hasegawa created an illustration for Tokyo for the Xperia Z3 Compact, whilst Jan Feliks Kallwejt created a graphic for the Xperia Z3 Tablet Compact representing Warsaw.
Unfortunately, if you are interested in one of these handsets, they are only available in Germany (see links below). All three are in stock, although judging from the source link, it seems that there are only 33 available for each model. So if you are interested, you’d better be quick.