I told people that owls don't have eyeballs they have tube-shaped eyes instead. Almost nobody believed me. Maybe if @arojinle1 confirms it, they'll finally accept it.
According to tradition, a Catholic saint from Tuscany thrust his sword into a stone after experiencing a vision of the Archangel Michael in the 12th century. A scientific analysis conducted in 2001 found that the visible portion of the sword and the section embedded within the stone are genuine and form a single, continuous artifact.