Just 40 kilometers northeast of Mexico City, the ruins of an ancient metropolis rise from the Valley of Mexico like a cosmic mystery waiting to be solved. Welcome to Teotihuacán — the "Place Where Gods Were Born" — a city so ancient and enigmatic, even the mighty Aztecs didn’t know who built it.

The boat ride starts off like any other through the ancient canals of Xochimilco. There's laughter in the distance, floating mariachi music, and the occasional splash of an oar. But then your trajinera turns away from the main path. The air gets still. The water darkens. The laughter fades. You're no longer headed toward a party—you’re heading into a ghost story.