Paintings in El Castillo Cave in Puente Viesgo.
Indeed, it was from about this date that the earliest began to emerge in caves and rock shelters around the world, but especially throughout the Franco-Cantabrian region.
Painting of a bison in the cave of Altamira

Fantastic Prehistoric Cave Paintings.
Human occupation was limited to the cave mouth, although paintings were created throughout the length of the cave. The artists used charcoal and ochre or haematite to create the images, often diluting these pigments to produce variations in intensity and creating an impression of chiaroscuro. They also exploited the natural contours in the cave walls to give their subjects a three-dimensional effect. The Polychrome Ceiling is the most impressive feature of the cave, depicting a herd of extinct steppe bison (Bison priscus) in different poses, two horses, a large doe, and possibly a wild boar.
Represents the oldest cave painting in Russia.
Archaeological excavations in the cave floor found rich deposits of artifacts from the Upper Solutrean (c. 18,500 years ago) and Lower Magdalenean (between c. 16,500 and 14,000 years ago). Both periods belong to the Paleolithic or Old Stone Age. In the millennia between these two occupations, the cave was evidently inhabited only by wild animals. Human occupants of the site were well-positioned to take advantage of the rich wildlife that grazed in the valleys of the surrounding mountains as well as the marine life available in nearby coastal areas. Around 13,000 years ago a rockfall sealed the cave’s entrance, preserving its contents until its eventual discovery, which occurred after a nearby tree fell and disturbed the fallen rocks.

During the Mesolithic period, humans developed cave paintings, ..
In the cave of La Vache, archeologists found a layer of charcoal underneath the black pigment of the paintings, indicating that a preparatory sketch had been made prior to the application of paint.