Madeleine McCann is a British girl who went missing on May 3, 2007, while on vacation with her family in Praia da Luz, Portugal. She was just three years old at the time. Her disappearance sparked a massive international search and media coverage, making it one of the most well-known missing person cases in recent history. Despite extensive investigations by both local authorities and private agencies, Madeleine has never been found. The case has led to numerous theories and suspects, but no conclusive evidence has emerged. Her parents, Kate and Gerry McCann, continue to advocate for her return and raise awareness about missing children.