Sometimes choosing to limit yourself to recycled materials can make your building more interesting. These buildings are made from a wide range of reclaimed materials, from concrete pipes and discarded doors to plastic bottles and bags.
The four-story Prahran Hotel in Melbourne, Australia, designed by Techné Architects and made using reclaimed concrete pipes.
The TuboHotel in Tepoztlán, Mexico, with rooms converted from concrete sewer pipes. It was designed by T3Arc, and opened in 2010.
Ubuntu-blox, built from plastic trash for Southern Methodist University, Dallas, Texas. It cost only $250.
The home of Tomislav Radovanovic, a retired math professor, built between 2001 and 2006 using about 13,500 plastic bottles
This pavilion, made of old kitchen sinks, designed and built by 2012 Architechten and Jeanne van Heeswijks
(via Superuse Studios)
A school made of plastic bottles filled with adobe, in San Pablo, Philippines. The material is much cheaper but three times stronger than concrete.