The massive protest marches against police brutality on Saturday in Washington D.C. and New York City have received a fair bit of media attention, but just how big were those protests? Although some officials have released numbers, we still don't have a final, definitive call on just how many protesters came out. Some reports put the D.C. march at 10,000, while others, from the NYPD, put the New York march (which is still ongoing) at 12,000 (a number that has been disputed by protesters on the ground).

But one aerial video of the MillionsMarchNYC march in New York, shot from a window overlooking 6th Avenue and 29th Street, offers a hint at just how large the march was. It's impossible to get an accurate count from watching the video, but the stream of humanity is impressive, whatever the final number.