The Adena Pipe, a 2,000-year-old relic found near Chillicothe, was named Ohio’s State Artifact in 2013. The effigy pipe, which was linked to the Adena culture, was found in a burial mound in 1901. The pipe is made of Ohio pipestone. According to the Ohio Historical Society, the Adena Pipe is unique because it is tubular and formed in the image of a person. However, it is uncertain if the figure is modeled after an Adena man or a mythological being.