Happy 700th birthday, Tenochtitlan

Mexico City is marking 700 years since the founding of Tenochtitlan, the ancient Aztec capital buried beneath the modern metropolis. The government staged a massive celebration to honor its Indigenous roots, and communities within the city held their own ceremonies to reclaim space and identity. But even as Mexico embraces its pre-Hispanic past more visibly than ever, some Indigenous groups say these are symbolic gestures, and substantial action to support their communities is still needed. The World's Tibisay Zea reports from Mexico City.