Berlin's historic Tempelhof Airport has recently become home to nearly 2,000 migrants. Tempelhof has an extraordinary history: it was built by the Nazis in the 1930s. It played a vital role in the Berlin Airlift in the 1940s. Throughout the Cold War the US military operated from there, alongside commercial flights. The airport closed in 2008 after a long political battle over its future. But now, Tempelhof is buzzing again as its empty aircraft hangars are turned into temporary accommodation for thousands of migrants. Matthew Bannister meets a 17-year-old Yazidi circus performer living in one of the hangars and the Syrian band who used music as their passport on their migrant journey through Europe.