In Mauritania, northwestern Africa, slavery is a fact of modern life. It's estimated that 10-20 percent of the country's 3.5 million people are still enslaved in a system rooted in ethnic discrimination.
In Bangladesh around 4.5 million children are working under hazardous conditions. Some 1.7 million of them live and work in the capital, Dhaka. DW correspondent Mustafiz Mamun has captured their every day lives on film.