Type-A Midget Submarine
The Type-A Midget Submarine is a Japanese vessel that dates back to WW2. This killer whale-shaped craft is now deserted on Kiska Island in Alaska. The Japanese forces withdrew from there in July 1943, they destroyed the subs with the use of internal explosive charges. All that remains now is the skeleton, which is now nothing more than an unprotected artifact.

Type-A Midget Submarine
Object 221 or Bunker Alsou
Object 221 is also called Bunker Alsou and Protected Command Point Black Sea Fleet. Save for the subway, the Soviet stronghold in the Mishen Mountains is the largest underground structure in Ukraine. The Soviets used it to keep the Black Sea safe in case the U.S. dealt a nuclear attack. Created in 1977, the tunnels are more than 6 miles in length. The bunker was a Cold War project and served as the Black Sea Fleet’s regional headquarters. It was also the Soviet military’s emergency command center.

Bunker Alsou