The utterly striking exclamation mark of a building brought big-time International Style modernism to the bilingual watchmaking town in the southern Jura foothills. A nod to Mies van der Rohe’s corporate glass-and-steel temples and Oscar Niemeyer’s sinuous civic buildings for the new Brazilian capital, the structure comprises a 14-storey administrative tower and two separate wings. One houses a 825m2 concert hall and an olympic-sized indoor swimming-pool, offering the rare chance to experience high culture and water sports in a single space. It also boasts a suspended roof, which counted as one of the largest in Europe at the time. The third building comprises various smaller halls and workshop spaces.