The limestone cliff of Cal Orcko in Bolivia is home to the world’s largest and most diverse collection of dinosaur footprints from the Cretaceous era, hosting around 5,000 dinosaur footprints dating back 68 million years. The prints belong to eight species, including the Titanosaur that weighed up to 100 tonnes. The location used to be the shore of a lake that attracted a large number of herbivorous and carnivorous dinosaurs. In damp weather, the creatures’ feet sank and left marks in the shoreline that were solidified by later periods of drought. The wet-dry pattern repeated several times, preserving multiple layers of prints. Tectonic upheaval then pushed the flat ground up to the viewing angle today.