Help Needed: Stuff to do in the city

[HELP NEEDED] Stuff to do in the city

One of my best friends is visiting SF soon and wanted to know the must-do things here. I was overwhelmed and skeptical of the usual online guides. I thought I'd ask all of you. I put together a Google Spreadsheet that anyone can edit. I also put together a spreadsheet for NYC (where I recently moved from) since a lot of people have been asking for to-do recommendations there as well. Feel free to add any ideas you have and share around!

Mark

NYC: https://docs.google.com/spreadsheets/d/1MvvDJZD1bFJA-gbwQk_UNJmB2HlIU32gJCzjmP7ncug/edit?usp=sharing

SF: https://docs.google.com/spreadsheets/d/15wmViyNehjwtwuZEyjQRTlOw3tyWB2lGQBH4k8RtRH4/edit?usp=sharing