The Aluminum Wedge of Aiud is one of the most mysterious and controversial archaeological finds of our time. Depending on who you ask, this particular artifact .brExperts believe mysterious aluminium object dating back 250000 years could be part of ancient UFO A piece of aluminium that looks as if it was handmade is .brA piece aluminium that looks as if it was handmade is being hailed as 250000-year-old proof that aliens once visited Earth. The discovery of the mysterious .brInvestigator claims UFO wreckage is evidence aliens visited the Earth 250000 years ago, The discovery of an ancient piece of aluminium is being hailed as .