A couple of years ago, there used to be a pair of large greenhouses on this field.
They held a wide variety of biomes, from desert, to a very well done rainforest.
They were a very nice place to relax, or study, especially in the winter, when the sight of
anything green was wonderful.
MSU decided to demolish them, for some safety related reason.
After students became upset, the administration agreed to replace them
with a new structure.
I think that they are just waiting for all of the students who remember
the old greenhouses, and the pledge of the administration to graduate, just like
they did with the keg ban on campus (Limited time? Its been 7 years now...)