Creative Architecture

Combining the concept of pod-like hotel rooms, with the growing trend of eco-responsible tourism and the use of waste materials for construction, architects T3arc have created the 20 room Tubohotel made from recycled concrete pipes.
http://www.springwise.com/eco_sustainability/tubohotel/

From waste to architecture

Rematerial: From Waste to Architecture
On Places, Rematerial: From Waste to Architecture: a gallery of architecture projects constructed from discarded materials, ranging from recycled tires to repurposed refrigerators to the steel supports of a dismantled expressway.
Read the essay and check out the slide show.
http://places.designobserver.com/feature/rematerial-from-waste-to-architecture/13838/

Recycling Architecture

http://weburbanist.com/2010/07/04/lifes-a-gas-viennas-recycled-repurposed-gasometers/