I do not see why one could not play. they are heavily used starting around 5pm. slo pitch softball with mixed teams. usually from a single office or company.

There used to be about 50 diamonds, but the current administration shut most down for security reasons. ?????

If you google 20003, use the satalite image and look around the Lincoln Memorial. I thought there still to be a couple of diamonds on 16th st near the washington monument, but they do not show