Foto de stock - 06 June 2019, Switzerland, Uttwil: Archaeologists and geologists are preparing a platform for drilling on Lake Constance. Near the shore, researchers are drilling and investigating the sediment of Lake Constance for mysterious rock formations. Recording with a drone. Photo: Felix Kästle/dpa. - Uttwil/Thurgau/Switzerland

Imagen: 06 June 2019, Switzerland, Uttwil: Archaeologists and geologists are preparing a platform for drilling on Lake Constance.

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