Green Wall
Plant wall at fair in France

This eco-friendly green wall was on display at the Sustainable Luxury Fair in Paris in 2010.

Pascal Le Segretain/Getty Images

Living walls are as beautiful as they are functional. These vertical gardens are able to support a range of plants from succulents and mosses to edibles. On top of turning otherwise wasted space into green space, a green wall on the south side of your building helps reduce cooling costs in the summer.

Most green walls are constructed using a modular design, which not only makes them easier to build, but also allows you to create interesting patterns and designs by mixing and matching different plants. Imagine growing fruits and vegetables right on your own home -- it doesn't get much greener than that!