Cave paintings, I believe.
Chauvet cave paintings.
Cave art done by early man.
The oldest cave art is in El Castillo northern Spain from 41,000 years ago. A new discovery in Indonesia is probably a similar age.
in California
The cave painting, the oldest examples are 30 - 25 000 years old. Some kind of writing has been found from about 4000 years ago.
Cave art exsisted back in the gave men days and can be found in a couple of places such as France
Today art comes from all over the world. 25 or 30 thousand years ago people painted pictures of animals on cave walls and carved little pictures from bone or horn. Those are the oldest kinds of "art" one has found. They happened to be in France and southern Austria, which does not mean that is where art originated. Only that those are the oldest traces found.
Cave art can provide valuable insights into prehistoric beliefs and daily life.
It is believed that the oldest cave in the world may be the Soudan Mine in Tower, Minnesota. Researchers have dated the original cave to 2.7 billion years old and it is made of Ely Greenstone. It is just under 2800 feet below surface in depth.
There are cave paintings in France which may be 30 000 years old.
Africa, it has many caves.