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    Ancient Mysteries: The 6 Coolest Native American Burial Mounds

    There’s something alluring about the unknown; that’s where the fascination with ancient Native American burial mounds comes from. Who built them? And why, exactly? The mysteries will remain unanswered until I can get enough plutonium to power the flux capacitor on my DeLorean- but maybe the charm of the unknown is for the best!

    1. Serpent Mound

    2. Cahokia Mounds

    3. Effigy Mounds National Monument

    4. Fort Ancient

    5. Spiro Mounds

    6. Observatory Hill Mounds