Does she know Seinfeld? Probably some Seinfeld sites to see around there.
I had frozen hot chocolate at the cafe from the movie serendipity about 20 hrs ago. Probably not a big deal now.
I love the Met but rare is the 18 y/o who likes the opera, and you’re already seeing a bunch of Broadway.
The Manhattan temple is cool to see.
Find out what movies she likes and what was filmed in NYC and go see them. That’s what I wanted to do when I visited there when I was 18.