Philadelphia is getting a new arena for its biggest indoor sports teams, and its architecture starts with a building that disappeared more than a decade ago.

At Melbourne’s Punt Road Oval, the football club gets a new home designed around everything that happens before, during and after the game.

On the western bank of the Pearl River in Nansha, Guangzhou, the Greater Bay Area Sports Centre establishes a new civic destination shaped by sport, culture and the geography of the waterfront.