Tokyo: in case of Apocalypse...

If you're planning to go in Tokyo soon, don't forget to have a look on sidewalk traps....
Wha'? Sidewalk traps? Yep!
Indeed, maybe you'll find one of these traps, leading directly to .... a secret undergound warehouse!
Created to protect population against violent earthquakes, this warehouse is 20 meters underground, 1,5 square kilometer (!!!), and contains everything you could need such as food, emergency supplies, rugs, ....
Check the video!