Incas and other pre-Columbian people left behind some extremely puzzling trinkets. Some of the strangest are probably the so-called Ancient Aeroplanes, which are small, golden figures that closely resemble modern jet planes. Originally thought to be zoomorphic (meant to resemble animals), the statues were soon found to have features that look very much like fighter planes’ wings, stabilizing tails, and even landing gears. They were aerodynamic enough that when ancient astronaut believers (allegedly) made model planes with their proportions and fitted them with propellers and (again, allegedly) jet engines, they flew perfectly. All of this has led to speculation that the Incas may have been in contact with (likely extraterrestrial) people who were able to build advanced jet planes, and who perhaps even possessed the technology themselves.
Well, that, or these wonderful statuettes might just be artistic representations of bees, flying fish, or other winged creatures. As always, the beauty is in the eye of the beholder.