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Photo: Pleonr, CC BY-SA 4.0 via Wikimedia Commons
Archaeological rock formation similar to Stonehenge but on a smaller scale. It's almost permanently submerged in a reservoir, with the tips peaking out. In periods of drought, the water reclines and the dolmen can be observed in its full glory. The dolmen was completely visible in 2019 for the first time in 50 years because of extreme drought in the region.
The Dolmen of Guadalperal, also known as the Treasure of Guadalperal and as the Spanish Stonehenge for its resemblance to the English Stonehenge, is a megalithic monument dating from around 3000 BC. It is located in Peraleda de la Mata, a town in the region of Campo Arañuelo in eastern Extremadura, Spain. The monument is within the Valdecañas reservoir in the Tagus River and is only visible when the water level allows it.
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A huge hill-top monastery/cathedral and great parador.