Originally bricks are formed out of clay, but in Karaba, a small African village in the southwest of Burkina Faso, bricks are mined directly from the hills.
Not every billionaire was born rich. In fact, many of them became wealthy previously living in poverty.
There are more than 200 countries in the world, and we are sure that you have at least heard something about each of them.
When the Spanish photographer Govin Lapetule heard about the concept of a "small house", he got really excited by this idea.