The Quimbaya Airplanes
No, it’s not a toy. This artifact which was found in Colombia dates back to 1000 B.C.- 1000 A.D. The mystery about this artifact is the aerodynamical accuracy of this artifact. German Aeronautical Engineers in 1944 proved by creating their large-scaled radio controlled models that these models were aerodynamically accurate, but how is it possible when the Wright Brothers invented the first flight in 1903!