Back in the 80's I used to ride around pretty much everywhere - to be fair daylight - Brooklyn and the Bronx. My NYC friend (who had long given up on the Subway) - used to say - "You went here ? - using up your 9 lives" -when I mentioned I had enjoyed a ride on the El to Marcy Avenue or up to 180th in the Bronx.
Nothing ever happened , in fact in certain places people used to make the effort to talk - not having seen a "tourist" there , probably ever. Those crap photos have not survived several house moves. Alas.