I’m pretty sure I must have been on the subway in Chicago, but it would have been a long time ago.
I’m pretty sure we rode on the subway when I was in Amsterdam, but not 100% sure.
I may have been on the subway as a child the summer we lived in Baltimore, but I think the chances are less than 50%, so I didn’t put it on here. Oh, and I’m sure I’ve been on the San Francisco Muni;
don’t remember whether I’ve been on the BART as well
. [Thanks, sionnagh