Recommendations for quick visit in town

I'll be visiting alone in a few weeks (mid-February) for work and will have a couple days/evenings free to explore Houston. I'd love to gear recommendations for things to see/hear/taste/do! Things I like – art/music/culture, counter-culture, bookstores, record stores, hidden spots, underground/off the beaten path spots, coffee shops,esoteric shops, ethnic foods… I'm adventurous! Thanks!