For forty years Europe was divided into two opposing ideological blocks, participants in a global Cold War between communist East and capitalist West. Where these political enemies met, the eastern regimes built an elaborate Iron Curtain, outwardly aimed at protecting themselves from western invasion but in reality to keep their dissatisfied populations captive. Twenty years after revolution removed the communist rulers, what remains of the barriers they erected along Europe’s political faultline? Journalist and photographer Paul Kaye cycled 3,600 kilometres along the route of the Iron Curtain, from the Baltic to the Adriatic and around Berlin, to record the physical remnants of the divide and the thoughts of those that lived along it.