Someone mentioned these at the last meeting and I remember when I was in Paris running to escape the rain and suddenly seeing this amazing building covered in green. Turns out, it was a vertical garden, designed by renowned architect Patrick Blanc. Below are a youtube video about the wall with an interview with the architect (I love his accent…) and a few articles I found about it..hope you enjoy!
patrick blanc’s website: http://www.verticalgardenpatrickblanc.com/
random articles about the wall in central paris:
http://www.inhabitat.com/2007/01/15/vertical-gardens-by-patrick-blanc/
http://gridskipper.com/61304/vertical-gardens-in-paris
http://www.frenchgardening.com/visitez.html?pid=1140712820340395
http://www.spicelines.com/2007/03/travel_diary_paris_ecochic_at.htm