Interesting parallel to the flowing rivers is mercury in the best known Chinese tomb: http://www.rsc.org/chemistryworld/2015/01/flowing-rivers-mercury http://w

Interesting parallel to the flowing rivers is mercury in the best known Chinese tomb: http://www.rsc.org/chemistryworld/2015/01/flowing-rivers-mercury http://www.rsc.org/chemistryworld/2015/01/flowing-rivers-mer... Speaking of using robots to investigate mysterious tunnels in tombs, one of the most publicized one must be the discovery of doors in a tunnel within the Great Pyramid: http://www.sciencealert.com/robot-captures-first-images-of-great-pyramids-secret-chamber http://www.sciencealert.com/robot-captures-first-images-of-g...