“While carrying out renovation work on the Nacional Monte de Piedad building – which dates back to 1755 and is now a historical pawnshop on Mexico city’s central plaza – workers came across unusual basalt slab floors underneath the building. According to the archaeologists, the floors had been an open area in the palace of Aztec ruler Axayacatl — father of Moctezuma, one of the final rulers of the Aztec empire — between 1469 and 1481.” – Deutsche Welle