Recommendation for 3 days trip!

Hey y’all have great day!

I am a tourist and I’ll be down at Houston 3 days for johnson space centre in sept 1st week and I could use you guys recommendations over here. 🙂 Jsc visit will be done by afternoon, i will be having free afternoon and evening for 2 days. Any nearby food recommendations / sightseeing recommendations? Thanks a lot in advance!!