Sources

• http://clec.uaicf.asso.fr/images/smiley_triste.png
• http://www.robotoshi.com/bubbashoe/happy.jpg 
• www.wikipedia.fr 
• https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj12SoikezMMaCIyVCN2uUCc_780Ae38qi7xHayhqzVe5BqZTbbbKV-aey_kP4svBg2Tg6DDV6LZ38UTg9qfnG9l5imdn4_YJByUjQ63HgkypF5qO9Hj-K0Rq4xQc30l6PeGsdbaXNU1vw/s1600/0004_tour_eiffel_2004.jpg 
• http://www.intercarto.com/cms/ 
• http://www.insecula.com/musee/M0054.html 
• http://www.tour-eiffel.fr/