Nanna Ditzel Billund Benchfor Fredericia Furniture The Billund bench was specially designed for the international airport in Billund, Denmark. It is a development of the Icon chair(2650) from 2002, whose sculptural and organic expression is typical of Nanna Ditzel’s design. The roomy round seats are upholstered and easy to replace. The simple lower frame is made of glass-blasted stainless steel. The benches are available in three- and four-seater versions and can be linked together.