This massive milk carton castle has been crowned the largest sculpture made from recycled materials by the folks at the Guinness Book of Records. Spain has had a busy summer, as the project on the grounds of Facultad de Arquitectura de Granada just beat out another record-breaking recycled project from up north. They did it by enlisting 5,000 local elementary students to compete in sourcing as many cardboard milk containers as they could. The result — an interactive citadel of cartons totaling 50,000 boxes.

The Guinness Book of Records measured the project at 29 metres (95 ft 1 in) in length, 14.07 metres (46 ft 1 in) in width and 7 meters (22 ft 11 in) in height — but no word on number of milk mustaches. The tower was designed by an architecture student and it features a turret tower, an open roof that creates daylit patterns, and a huge maze to explore. The building blocks were constructed using just glue and staples. While this may technically be reuse rather than recycling, we bet that it will inspire a lot of kids to rethink (and reuse) what they used to just throw away.
+ Guinness Book of Records
Via Recycle Art