These grooves are the traces of ancient metal clamps. Builders cut sockets across adjoining stone blocks, inserted iron connectors, and often sealed them with lead to lock the masonry together. The system helped resist shifting, settlement, and even seismic stress—one reason these structures could endure for centuries. #AncientEngineering #Archaeology #AncientConstruction
These grooves are the traces of ancient metal clamps. Builders cut sockets across adjoining stone blocks, inserted iron connectors, and often sealed them with lead to lock the masonry together. The system helped resist shifting, settlement, and even seismic stress—one reason these structures could endure for centuries. #AncientEngineering #Archaeology #AncientConstruction