Where shall we visit 是错误的?

Where shall we visit 是错误的?
Where shall we visit 是错误的?

Where shall we visit 是错误的?
正确的 但一般说where are we going to visit?
当然 where should we visit个人感觉更好

我觉得没错，visit可以理解为不及物动词，where是adv做地点状语，本句成分是完整的。