The Great Serpent Mound

The Great Serpent Mound is an ancient, 1,300-foot-long earthwork located in Ohio, shaped like a giant serpent or dragon. Believed to have been built by Native American cultures around 1000 CE, it is thought to hold astronomical and spiritual significance. The mound aligns with solstices and lunar events, suggesting it may have been used as a calendar or ceremonial site. Its impressive scale and craftsmanship reflect advanced earthworks engineering and a deep connection to celestial phenomena, making it an important archaeological and cultural symbol.