Many Native American cultures believe in spirituality and mysticism. Native Americans have left several artifacts that provide people a glimpse into these cultures. Yet there are still many objects shrouded in mystery, like the giant Medicine Wheel atop the Big Horn Mountains in Wyoming.

No one knows when, how or why this 74-foot diameter stone circle was built. Like the famous Stonehenge, theories surround the mystery of this ?medicine wheel?. Some say the wheel was built by a Native American tribe between 1200 and 1700 AD for religious ceremonies. Others ascribe a more scientific reason; the wheel was used as astrological device during its time.

Archeologists, mystery busters and occult fans can visit this wheel at Big Horn Mountains. The site was declared a National Historic Landmark on August 29, 1970.