Slope illusion 25
Outdoor tilt illusion where an ascending slope appears to descend or a descending slope appear to ascend
e.g. Magnetic Hill in Canada; Wikipedia
since May 25, 2016
Roller Coaster Road in Kinokawa, Wakayama, Japan
March 5, 2016, reported by Akiyoshi Kitaoka and Seiichi Tsuinashi
These slopes appear to be rather acute, though the descent in front has a tilt of 6.0º (10.5%) and the ascent behind has a tilt of 5.8º (10.1%).
Copyright Akiyoshi Kitaoka 2016 (May 22) @Kinokawa City, Wakayama, Japan, March 5, 2015
Back view
Slope illusion 24 (Slope illusion in Scales, Lake District, UK)
Slope illusion 23 (Slope illusion in Chokai Blue Line, Akita, Japan)
Slope illusion 22 (Ghost slope 2 in Kume-jima Island, Okinawa, Japan)
Slope illusion 21 (Ghost slope in Kume-jima Island, Okinawa, Japan)
Slope illusion 20 (Magnetic hill in Radan, Serbia)
Slope illusion 19 (Illusory slope in Naruto Skyline, Tokushima-prefecture, Japan)
Slope illusion 18 (Mystery Zone in Yashima, Takamatsu, Japan)
Slope illusion 17 (Possible slope illusion in Hokkaido, Japan)
Slope illusion 16 (Illusory slope in Biei, Hokkaido, Japan)
Slope illusion 15 (Roller Coaster Road in Kamifurano, Hokkaido, Japan)
Slope illusion 14 (Illusory slopes in Tsunan and Tokamachi, Niigata, Japan)
Slope illusion 13 (Slope-ascending water in Tsunan-twon, Niigata-prefecture, Japan)
Slope illusion 12 (Slope-ascending water in Ujitawara-town, Kyoto-prefecture, Japan)
Slope illusion 11 (Skewed staicase of the Shigaraki Ceramic Cultural Park, Shiga, Japan)
Slope illusion 10 (Skewed staicase of Shomaru railway station, Saitama, Japan)
Slope illusion 9 (Illusory slope in Minamitane-town, Tanegashima-island, Kagoshima, Japan)
Slope illusion 8 (Illusory slope in Nakatane-town, Tanegashima-island, Kagoshima, Japan)
Slope illusion 7 (Danjo-zaka and Okyo-zaka in Amakusa-Shimojima, Kumamoto, Japan)
Slope illusion 6 (Slope-ascending river in Miyama, Nantan, Kyoto, Japan)
Slope illusion 5 (Ghost slope in Okagaki, Onga-county, Fukuoka, Japan)
Slope illusion 4 (Slope-ascending water in Tanushimaru, Kurume, Fukuoka, Japan)
Slope illusion 3 (moving-back slope in Hashikami, Aomori, Japan)
Slope illusion 2 (Mysterious slope in Towa, Iwate, Japan)
Slope illusion 1 (Mystery zone in Yashima, Takamatsu, Kagawa, Japan, etc.)