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Top 10 il­lu­sions facts

Selected as the most interesting among optical illusions related questions in
Optical illusions quiz
Globalquiz is a hard trivia game.
After playing some quizzes, you will get detailed results about your strenghts and weaknesses.
Check your knowledge
Which continent is that?
Australia. This is Australia map, with north at the bottom side.
globalquiz.org
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Very interesting!
continents facts
Which shape is larger?
None of them. Both shapes are the same, but the bottom one is placed more to the right. This is however difficult to notice. It is known as Jastrow Illusion.
globalquiz.org
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Very interesting!
geometry facts
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