Green architecture has been around for quite some time. Some of them uses solar energy or wind energy to support the structure’s electricity need, making them qualified to be classified as green architecture. Some of the structures use recycled materials like PET bottles, recycled lumber, and more in order to be categorized as eco-friendly and Green Nest is just one of them. Designed by Bolivian architect Ingrid Vaca Diez, the Green Nest is probably the greenest house on earth as it is made from unwanted stuffs like plastic bottles, expired powder milk, horse manure, and everything that are available. With the help of other six women, the Green Nest was built.