[IMGCAP(1)]Two unidentified staffers wait for an elevator in the Hart Senate Office Building in this week’s Lost & Found photo. There’s an important identifying characteristic that will tell you which floor they are waiting on, and that’s the challenge. Check back after Memorial Day to find out the floor in question.[IMGCAP(2)] Last week, we asked you to identify the building boasting this Capitol view. The photo was taken from Room 902 of, yes, the Hart Building.