The largest artificial lake in Europe is located in Southeastern Portugal, more precisely in the Alentejo region: the Alqueva Dam.
It's a dam with an area of 250 km2, a length of 83 km and a perimeter of 1160 km!
Here one of my last photos during a boat trip on the big lake!
Taken with my smartphone at sunset ...
Alqueva Dam at sunset © David Germano | All rights reserved.