I know you can visit some theme parks at certain times of year to avoid many children, however what I mean are theme parks built more for imaginative and fun-loving adults.
Take some of the park rides you might find in family theme parks that appeal to both adults and children, but instead of avoiding elements that may confuse/frighten children, they’re allowed to get more detailed or whatever may be more fun for people. Fwiw I’m aware of some smaller scale themed venues (particularly some horror-related ones), but I feel like I’m blanking on any obvious larger scale ones.
In what country or continent?
Honestly any, even if I may never get a chance to visit, I like learning about some of them, particularly ride designs and engineering. (Also for those lurking, this question is mainly inspired by having watched some more Defunctland videos lately.)
6 flags was fun as an adult.