Puma Punku: Cramp Mark
These I-shaped architectural cramp marks would have been filled with molten metal, which would set to create binding pins designed to counteract the shaking effects of seismic activity. There is an anomaly though; the Tiwanaku are thought to only have smelted copper, which wouldn’t be strong enough to hold bricks of this size and weight together during an earthquake of any magnitude!
© Robin Heyworth – Photo taken 2nd April 2002
