The crossing in Britain where the Beatles Abbey Road cover was taken is famous! What's the most famous in USA?

I would say the crossing of Haight St. and Ashbury St. in San Francisco, California which is known as the Haight-Ashbury! It became famous in the 1960s and still attracts visitors today!

Now that's an interesting question!

I expect you'll get a lot of answers related to sports teams, like whatever street is in front of Fenway Park.

My vote is for the corner of 42nd Street and Broadway, also known as Times Square.