www.Oculoid.com is a great art site that has "daily doses" of inspirational images. What caught my eye though was the great paper artworks of Peter Callesen that can be found here.
Peter's works ranges from nature to buildings... even up to human figures... all made out of paper. It's worth a check. I haven't gotten the chance to fully explore the website but it looks really promising. If a man like Peter has a section in this site... who knows what else you can find there.