interests
   alt-energy
   animals
   art
   clocks
   colbert
   college
   computers
   documentaries
   food
   form letters
   free books
   glasses
   house
     air
     alt
     appl
     art
     asbestos
     design
     electrics
     floors
     furniture
     green
       passive
       roof
       wall
         building-exterior
         building-interior
         house-exterior
         house-interior
         outdoor
     ironing
     mine
     mobile
     paint
     plaster
     plumbing
     sinks
     vodaphone
   law
   logic
   math
   movies
   plants
   plastics
   recipes
   shellshock
   toronto
   transpo
   usb
   watches
   wtf
me
opinions
works

Outside green walls

Examples of Outside green walls.

citi-greenwall.jpg
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