Mikhail Puchkov from Russia built the submarine you see above in his very own attic, using scrap metal to boot. The first iteration was pedal-powered, but he eventually upgraded the underwater submersible to an electric system. Continue reading for more pictures and a video.
Mikhail built the submarine at a time when Russia was still a part of the USSR, and used it as a mode of transportation to see parts of his own country that were off limits to the normal citizen. During one of these trips, he was actually stopped by the KGB, but surprisingly enough, they didn’t arrest him, but rather sent him off to a ship building college.