Their stories are the ones we dread hearing on the news. They are the missing children who make international headlines each year and their stories can be hopeful, heartbreaking and, all to often, both.

Each case of a missing child deserves a spot on this list, but we only have room for 10. These are the cases we remember as being the most heart wrenching and, in some instances, the cases that have had the biggest impact on future missing children's searches.