I like learning about the construction industry and going out to job sites to talk to the workers about what they were doing and how they were doing it. It was a field I had never been exposed to before and even though you can't learn everything in 8 weeks I still gained a wealth of understanding on the industry.
What I wish was different
Being an electrical engineering student I wish I would have worked more closely with the electricians out in the field rather than spending most of my time in the office doing busy work.
Advice
A-C Electric is a great company to intern for regardless of major because I feel like they have a lot to offer, just be sure to know what you want from them in the beginning and ask for it.