It's only open on special days. If you go to their Facebook site you can find out more.
It's probably best to call ahead. I've heard there were times they didn't have enough volunteers to man it, so they didn't open some days it normally would or had shorter hours. Go to LLELA.org
I never came at a time when it was open but I know they give tours. I will try to find out more.
Contact them for accurate info.
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