I am curious about educational field trips is there some site that one can look up what companies give tours students or recreational tours? I know some power plants like the hoover dam , or some electric generator plants one can take tours. But I am wondering if there is tours for oil/gas refineries or mining /ore refineries or water/sewer company tours or nuclear plants or other such things. It would be great for engineering students to gain actual physical experiences of what they read. Not sure if there is a cost for some of these but curious would be nice to go on some of these engineering infrastructure / physics tours as well And to me I don't see a centralized site that one can lookup what is available for tours/education field trips would be nice. Don't really know of a convenient method yet.