The Sacred Well of Santa Cristina in Sardinia features a round opening transitioning into a precise conical tholos — a shape echoing nuraghi towers from the Nuragic civilization, dated 3,000-4,000 years ago, though the well's precision exceeds their other works. Every 18.6 years, the moon shines directly down into the well.
Sacred Well of Santa Cristina features conical tholos and lunar alignment

Key facts
- The Sacred Well of Santa Cristina in Sardinia has a round opening at the top and a conical shape below
- Each rock is set back, with the slant in the rock making the opening close to a perfect circle
- The conical shape mirrors nuraghi towers built across Sardinia, though none match the well's precision
- Attribution to the Nuragic civilization, 3,000-4,000 years old, but the precision exceeds that culture's other works
- Every 18.6 years, the moon shines directly down into the well
Sources
Pozzo Sacro di Santa Cristina - Sardegna - Englishpozzosantacristina.com
Easily accessible from the ss. 131, located in a beautiful wooded park that includes a sacred well, a nuragic village and the rural novenary of S. Cristina. It ...
Santa Cristina well: a mystery of Sardiniaecobnb.com
It is the well of Saint Cristina's sanctuary, sacred nuragic area par excellence, which stands on a basaltic plateau near Paulilatino.
Sacred Well - Pozzo Sacro di Santa Cristina - Sardegnapozzosantacristina.com
Located near Paulilatino, it is the most representative sacred well of the island where stories, legends and truths are intertwined.
Santa Cristina: The World's Best Off-Ramp Attraction?wanderingsardinia.com
Visit the Sacred Well of Santa Cristina, a Bronze Age nuraghe, a Romanesque Church, and pilgrim houses built in the 1700s.
Nuragic holy wellen.wikipedia.org
The nuragic holy well is a Sardinian Bronze Age structure for the worship of the waters. Scattered throughout the island, along with the Giants' grave and ...
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