1. Programa de Doctorado en Turismo, Universidad Rey Juan Carlos, 28933 Madrid, Spain
2. Laboratory of Applied Sciences for the Environment and Sustainable Development, Higher School of Technology Essaouira, Cadi Ayyad University, Km 9, Route d’Agadir, BP. 383, Essaouira 40000, Morocco
3. Department of European, American and Intercultural Studies, Sapienza University, 00185 Rome, Italy
4. Department of Science of Antiquities, Sapienza University, 00185 Rome, Italy
5. HIEART Grupo de Investigación Historia, Iconografía y Economía del Arte, Universidad Rey Juan Carlos, 28933 Madrid, Spain