What are your favorite non alcohol involved things to do here in the winter?

I need to be alcohol free for at least the next few months due to a medication I need to take. In the summer this seems easier with going to the lake, playing sports outside, or even 6 flags. But winter...it gets a bit tougher. I love museums but have probably been to all the major ones at least 10 times each now. I like eating out enough but Im far from a foodie and the same medication restricts my diet a bit so there's that... Any good activities people here recommend that work in the winter and arent centered around food & drink?