Best architecture of FIFA World Cup 2026. Mercedes-Benz Stadium by HOK – Photo by HOK. Architecture. The FIFA World Cup 2026 is well underway, transforming North America into football’s biggest stage. For the first time, three host nations — Canada, Mexico and the USA — come together, with matches running until 19 July. Beyond the pitch, the venues themselves are worth a closer look: a mix of storied arenas steeped in football history and cutting-edge stadiums flexing serious architectural muscle.