The scientific purpose for the summer and winter solstice alignments at Stonehenge and Woodhenge of the United Kingdom ( UK ) , Monks Mound and Woodhenge of Cahokia Illinois in the United States ( USA), and Puma Punku located in the Tiwanaku ( Tiwanaku / Tiahuanaco ) district of Bolivia South America, which collectively serve to resolve the mystery of Stonehenge in preparation of the 2022 summer solstice festival and celebration events which are of special interest to the UK, Celtic, Druid, Pagan and Native American populations, as well as to many other interested academic and world-wide communities.
