Drought Uncovers ‘Spanish Stonehenge’ Hidden Underwater For Decades

In 1963, the Spanish government under Francisco Franco built the Valdecañas Reservoir, which brought water and electricity to underdeveloped parts of western Spain. However, the creation of the reservoir flooded some inhabited areas as well as large stone (megalithic) monuments. After 50 years of being submerged, one of these ancient monuments—the Dolmen of Guadalperal—has resurfaced due to dry, hot conditions in 2019.

More information at https://allthatsinteresting.com/dolmen-de-guadalperal.