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.

Imagine walking through the rolling hills of Northern England when suddenly—there it is. A stone wall, winding like a spine across the landscape. Silent. Crumbling. Ancient. This is **Hadrian’s Wall**, once the northernmost frontier of the mighty Roman Empire. Built almost 2,000 years ago, it now stands as one of Britain’s most haunting and awe-inspiring historical sites.