This underground system has been in use in Portugal for the past 20 years! It's nothing new in Europe! 
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Ingenious
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Hi Danielle I like this video
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Okay... now this is kinda cool.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Excellent way 2 cut the smell trash cans emitt. Excellent idea
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
What coke infused idiot edited this?
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.