My work occasionally has me go on site to automotive plants. I'll tell you what, I fucking love walking around them and looking at the incredible feat that is a vehicle assembly line. Sometimes I go when it's running production and sometimes I go on down days where it's basically empty, both are equally amazing.

I'd be happy with just going to the zoo, or planetarium.

But, I also remember being pretty chuffed to get a field trip when I was a kid, so I wouldn't call that "wasted".

This is the reason I volunteer as chaperone for my kids field trips.

my current employer doesn't call it field trip, we call it team building. at least once a year we go and do something completely unconnected to work.

I’ve actually gotten to help fix a 1700s water powered gristmill, and will be repairing a dam and millrace, then building a new wheel for the mill I volunteer at! It’s not a bad life 😊