Lake Seliger
An ideal location for such complex would be a relatively large island from a coast. Initial sites discussed for this complex included Lake Baikal, but choices were narrowed down to the Solovetsky Islands in the White Sea, Gorodomlya Island located on Lake Seliger and Vozrozhdeniya Island. The Russian Civil War and several unsuccessful attempts to build the complex from 1936-1941 led to a belief that such a complex must be built far from the Soviet Union's borders with other nations. Vozrozhdeniya Island's location in the middle of the Aral Sea, well within Soviet borders, satisfied this consideration.