I understand this is among the world's longest escalators, but it's only the 3rd longest in the D.C. metro system! (The others are only a little longer.) This is at the Woodley Park station, on 11/3/2016.
I went on this and it scared the shit outta me, you just constantly feel like you might fall and are clinging onto the hand rails literally for your life because of how high it goes.