The Sacred Well of Santa Cristina, located in Sardinia, Italy, built over 3,000 years ago by the Nuragic civilization, this well is not merely a water source; it is intricately designed to align with solar and lunar cycles.
During the equinoxes, sunlight illuminates the depths of the well, creating a striking visual effect. Additionally, every 18.6 years, a major lunar standstill allows moonlight to shine directly into the well’s chamber. These alignments demonstrate the advanced understanding of astronomy possessed by the Nuragic people.
