"For the Olmec we have these great colossal heads, we have thrones, portraits of kings and very often, important here too, is the concept of centrality. And so, on this finely carved serpentine ...

The enormous "Portal el Inframundo" (Eng. Portal to the Underworld), an ancient Olmec monument, has returned to Mexico after many ordeals. For nearly 3,000 years, it adorned the walls of the ...