Estimation
3 October 2013 0 Comments
There is something special about this post… it marks the 300th post to An Optical Illusion! A big thank you to our loyal visitors who have submitted material and provided valuable feedback since the inception of this blog. We always love to hear your thoughts, so please let me know what you would like to […]
Forced Perspective
10 August 2012 0 Comments
The Eiffel Tower, named after its engineer Gustave Eiffel, was erected in 1889 in Paris, France for the 1889 World’s Fair. The tower measures over 1,000 feet in height. From 1889 to 1930, it was the tallest man-made structure in the world. In the photograph below, a giant man shows off his height by playfully […]
Estimation
20 April 2012 0 Comments
Presented below are three sport utility vehicles parked in a row. Which one is the biggest? Would you believe that all three of these are identical and exactly the same size? Perhaps you’ll want to measure them with something to find out for yourself. Remember, new illusions are posted daily Monday through Friday. If you […]