When the FIFA circus packed up and left South Africa in 2010, the host city was left with a number of world-class stadiums that have become white elephants. Cape Town's Green Point Stadium, for example, is now home to a small South African Premier League team and has hosted a handful of concerts for U2, Bon Jovi and Justin Bieber. But eye-watering operational costs and low income have led to calls for it to be demolished and turned into affordable housing.