Also interesting village subway by Леонид Мулярчик from Russia, 20 years of elder man's work :

http://victorprofessor.livejournal.com/106201.html

http://suriso.livejournal.com/381310.html

http://video.yandex.ru/users/paninbar/view/1/

Hand made everything: tunnelling shield, waterproofing, electricity supply and stairs at entrance halls. More than 200 metres of tunnels, including fire-safety tunnel. All grunt removed by shovel and handmade conveyer belt. Guy ever installed security cams and cash register. Only cars and rails remained to make before he died a month after heart attack from visits of journalists. Also he wanted to place water supply and canalization pipes in subway but can not to win over authorities.