Lululemon, the athletic clothing store, on Halsted in Chicago provides FREE yoga classes every Sunday at 10:00 am. Yes! For free!!
I'm not sure if it's the same teacher every Sunday, but it's well worth the time to go. I love the class and the teacher I had was excellent. It was a lot of lunges and planks. So it was the best of challenges for me since those are what I need work on.
I haven't gone the last couple weeks because of the holiday and being busy. I plan on starting to go again this Sunday.
I'm not sure if any other location offers yoga, but it doesn't hurt to call and ask. This just happens to be a location near me. Take advantage of what's free in your neighborhood.
"Keep Moving Forward"