Mystery rock art may be maps of graves.
I have been reading a book by Emmanuel Anati called “Evolution and Style in Camunian Rock Art” which is a study of rock art by ancient peoples in Italy. Amongst this rock art is probably the oldest map in the world, the “Map of Bedolina”
There is a difference of opinion on the age of the map, which could be anything between 1500 BCE and 600 BCE, but it is an ancient map. My search on Google Maps reveals a possible location for where this map points to as south of the village of Pescarzo. On the right-top of the map is a ladder, which may be the waterfall I see on Google Maps.
The rock art in this area of Italy is spectacular, and changes in symbolism depending upon the era. The search engines are poor on links to images of the “Camunian Rock Art”, but I have the images in my book.
The rock art, which includes cup and ring markings, has a sense of showing graves, and indicates at least the gender, and often the trade of the figure on the rock. Cup and ring markings is a major mystery in megalithic research, and I am thinking that Camunian Rock Art may solve the riddle of those markings.
Another mystery is the Pictish markings in Scotland, which reflect those of the Camunian Rock Art in that they are recording information about someone buried close by.