The 4,000 m2 purist concrete cube is located in the centre of Chur opposite Villa Planta, the splendidly ornamental 18th-century home to the original art museum. The extension by Barcelona-based practice Barozzi Veiga from Barcelona is a contemporary take on the Palladian style of its predecessor. But instead of pomp, radical reduction and repetition reign supreme: the façade’s slick inset relief panels comprise 4,600 square blocks of moulded concrete. It’s Palladian for purits, so to speak. But the pared-down reimagining is not universally welcomed in Chur. Not that the new architectural showpiece cares much, because, hey, it is very, very photogenic. This minimalist cube is a fine example of how concrete can be translated into something that is both eye-catchingly bold and filigree at the same time.