How did the ancient Andeans and Egyptians move the massive stone blocks used to build their monumental architecture? With an abundance of human muscle power but only simple hand tools, they needed to be creative. Floating blocks on boats across lakes and along river channels was a possible transport method—but did they have the water and the engineering technology for this?
Machu Picchu, the city built by the Incas on a steep mountain ridge, is a tremendous engineering achievement – and only one of many impressive constructions by the ancient Andeans. Among these is Chavín de Huántar in northern Peru, with a sprawling temple complex that was once the center of a powerful cult and an important pilgrimage site.
What do Machu Picchu, Stonehenge, and the Egyptian pyramids have in common? They were built with wood and stone tools – they are constructed from rocks – and they are examples of monumental architecture. When [...]