We have an opportunity to salvage my old high school gym floor before the school is demolished. I thought it would be cool to use it as flooring in our basement. I fear the wood it glued down. Is it possible to pull up the boards without destroying them and can they then be used in our basement? Any ideas on how to pull the boards up?

Thank you!

Real hardwood can not be glued down and should not be installed below grade.
Removing it will be a slow back breaking job, once you got a few feet you would be thinking about what it would cost to just go buy new prefinished.

If you want a real wood looking floor in a basement may want to check out engineered flooring.

not all gym floors are glued, salvage yards have old gym floor wood all the time. about all I can say is do plunge cuts in one area to open up a board, wreck it, and try to carefully pry up others to slide out the new hole. if the wood comes out, it should have at least one more careful sanding in it and can be reused.

Thank you for the help, our bassment is a walk out, so it is ground level, so I assume hardwood floors would be okay?

Basements by nature tend to have a much higher humidity level. Even if it's from rising moisture from the slab.
Real hardwood flooring can not be glued down to the floor, and no laying plywood down first to it can be nailed down will not work.
The only real wood looking flooring approved that I know of that can be installed below grade is engineered flooring. It can be installed as a floating floor by gluing all the seams and using a vaper barrier under it.

If your thinking somehow your going to be "saving" money by reusing recycled wood that you get for free unless your time is worthless and your getting all the materials and machines your going to need to rent to refinish this floor once it's installed, and all the time the floor will be unusable while all this is being done. It's not really free.
And there's a very real chance any real flooring will start to cup from all the moisture and be usless.

Thank you Joe...It is really less about saving money and more about how cool it would be to have a part of the floor I played hoops on in our basement.