When Marriott's first hotel (Twin Bridges) opened in Arlington VA what feature did it not have that every other large hotel in the area did have?
Could it have been no lobby since they had an outside check-in area?
Yes and there's one more thing that set this apart.
Not sure what you are looking for here, but I'll offer a guess of no room service. They escorted guests to the rooms on bicycle and that was different, too. Did you stay at this hotel?
I'll guess a bar...
Good one and there is one other feature (mentioned in Spirit to Serve by the way).