Divo Ostrov (Wonder Island), St. Petersburg, Russia

Deep in the woods outside St. Petersburg lies an opposite-of-fun fair: a ride seemingly designed to make riders vomit on themselves. Named the Wind Shear, the ride turns clockwise on one side and counterclockwise on the other half. But don't worry, we're sure that this ride is totally safe … unless you have a fear of puking (or of other people's vomit) … and except for those two separate accidents in the theme park where cables holding the rides together snapped while people were on them.