Castlefield Viaduct in Manchester is a huge Iron and steel Railway viaduct. A marvellous example of Victorian railway architecture. It has been abandoned since 1969 and sat unused. However the National Trust has come in and made it a walkway in the sky. A new green space for Manchester like New York's High line. The garden in the sky opens at the start of August this year. Book online to look at this amazing community space. A former industrial railway viaduct made into a recreational space. A first for Manchester and Salford. We take a tour of Castlefield viaduct look at the gardens and talk to the National trust regarding their plans and the future.