How One Russian Man Is Building His Own Personal Subway

In a word: Persistence. Partly the traditional, inspiring, one man against all odds type of persistence, but more the obsessive, borderline insane persistence. But whatever, this dude's building his own metro, like a CITY, so I should probably shut up.

There's an old man in Russia, digging out about one metre of soil a day, right now, for a personal subway system.