An aircraft with a lace-like structure may not seem like the best way to fly, but it is one of a range of radical ideas about how we may travel in the future.
A model of the aircraft, designed by Airbus, was shown off at the TEDGlobal conference in Edinburgh.
Taking inspiration from the human skeleton, the design is both strong and relatively lightweight.
This means it could, in theory, drastically reduce the fuel costs of flying.
The European company said the aim would be to 3D print the composite material that would make the structure.
The concept aircraft was created by a team of structural engineers at Airbus. (via BBC News - TEDGlobal: Visions of the future of flying)