Fighting the establishment: From small businesses to citizen collectives, we discover how championing transformative change from the ground up can be the best way to alter the status quo in our cities. We see how the Ministry of Space is reclaiming public spaces in Belgrade, visit Vienna to find out how ordinary citizens are welcoming refugees and check out a collective in Rio de Janeiro that wants to reshape the politics of the city. Plus: small businesses in London’s West End and the fight against increasing rent prices.