Where to take a girl on adate and dinner ideas?

Looking to take someone out on a date sunday evening. We have went out once, in her 30s. She's really into me. She likes that im older than her mid 40s. Looking to go out sunday evening and start going out a few times a week. Any suggestions for an activity or date idea and then a place for dinner? Possibly going to observatory tomorrow so would like a dinner idea after. As well as any other ideas and places for future dates? Thank you