Declaración UNESCO del arte rupestre del arco mediterráneo Historical milestone · Vélez-Blanco, Los Vélez, Almería Image of Vélez-Blanco, not of the place itself. The Cueva de los Letreros, declared a Monumento Nacional in 1924, is part of the rock art groupings of the Mediterranean Basin of the Iberian Peninsula inscribed by UNESCO as a World Heritage Site in 1998. Photo: brianna.lehman (CC BY 2.0) What to see and do in Vélez-Blanco