Loyal fans, Mighty Optical Illusions gives you ultimate diverting test! “Senses Challenge” is on-line test provided by BBC, where you can test your previously learned knowledge on various optical illusions. Before you take this test, be sure to check most of the illusions on this site, and I grant you high results! When you get your results, feel free to post them here and give us your thoughts and comments! To take the test, simply click on the image below. Good Luck!