Naval museum complex Balaklava

Naval museum complex Balaklava (Ukrainian: Морський музейний комплекс "Балаклава"; Russian: Музей холодной войны, lit. 'The Cold War Museum', designation K-825) is an underground submarine base beneath Mount Tavros in Balaklava, Crimea (originally known as Object 825 GTS). It was a top-secret military facility during the Cold War, located in Balaklava Bay.