2. The Hollow Face Illusion: This illusion makes a concave face appear convex, giving it a creepy and unsettling appearance.
3. The Floating Ghost: This illusion makes it seem as though a ghostly figure is floating in the air, despite there being nothing there.
4. The Ebbinghaus Illusion: This illusion makes two identical circles appear different in size due to the surrounding circles.
5. The Disappearing Dots: This illusion makes it seem as though dots are disappearing and reappearing on a grid, creating a spooky effect.
6. The Rotating Mask Illusion: This illusion makes it appear as though a mask is rotating in the opposite direction of its actual movement, creating a creepy and unsettling effect.
7. The Moving Mona Lisa: This illusion makes it seem as though the Mona Lisa's eyes are following you as you move around the room, giving her a haunting and eerie presence.
933 × 978
Source:https://www.dailymoss.com/18-scary-optical-illusions-that-will-effectively-deceive-your-eyes/
630 × 1200
Source:https://www.irishstar.com/culture/optical-illusion-labeled-kinda-scary-30706088
900 × 1200
Source:https://www.dailyrecord.co.uk/lifestyle/creepy-optical-illusion-shows-womans-31001997
675 × 1200
Source:https://www.jagranjosh.com/general-knowledge/1880s-optical-illusion-test-high-iq-people-can-spot-man-hidden-in-peacocks-vintage-picture-1678692937-1
780 × 600
Source:http://visualfunhouse.com/category/scary_illusions
978 × 750
Source:https://www.businessinsider.com/photos-of-mind-blowing-halloween-optical-illusions
634 × 640
Source:https://www.reddit.com/r/creepy/comments/8wvuhu/skull_optical_illusions_by_hungarian_artist/
1080 × 1920
Source:https://www.thesun.co.uk/fabulous/18815620/love-quiz-optical-illusion-oleg-shupliak-image/
333 × 328
Source:https://www.pinterest.com/pin/mindbending-optical-illusions--461478293039387359/
768 × 1366
Source:https://www.diyphotography.net/this-artist-uses-makeup-to-turn-herself-into-creepy-and-dark-optical-illusions/