There are more than 200 countries in the world, and we are sure that you have at least heard something about each of them.
Not every billionaire was born rich. In fact, many of them became wealthy previously living in poverty.
A strong fire swept through one of the most beautiful corners of our planet, the Yosemite National Park in California.
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.