The Wall in Mexico.

Four researched records in Mexico City in Mexico: three relocated segments and one museum display.

Between them the sources report three segments of wall. Map positions are missing for two of them: either no source supplied one, or the one supplied could not be right.

A further two listings for Mexico are held in the catalogue as drafts, out of the map and the indexes until they have been researched.

Every record is labelled Reported: a credible source says the object is there, not that anyone has confirmed it in person. How claims are weighed is set out in the research methodology, and the reading room explains how the Wall came to be spread across places at all.