Megaliths are large stones used by prehistoric peoples to build monuments or structures. Perhaps the most famous example of a megalithic structure is Stonehenge in England. However, ancient (and often mysterious) stone structures can be found across Europe. In 2019, an unusually dry summer caused the waters of the Valdecañas Reservoir to recede, revealing a … Continue reading Drought Reveals “Spanish Stonehenge” That Had Been Hiding In a Reservoir For Over 50 Years