Sources

https://d1z1c2g2uiorau.cloudfront.net/2-home_default/drapeau-europe-5075-cm.jpg

https://fr.wikipedia.org/wiki/Portugal

http://rotaterrafria.com/uploads/geo_article/image/4754/castelo_algoso_1.jpg

https://www.vanupied.com/wp-content/uploads/porto-illustration-guide-derrick-brutel.jpg

https://lh3.googleusercontent.com/KKZ0Oh2XE3Z1kQfu2eVlJ6psB3v7eUYi_m4rn23AxlVoH7q6XLJe1j3BMkQuwL8EC9szhP4=s128

http://images-cdn.impresa.pt/visao/2012-08-27-0--6-.jpg-1/original/mw-1240