Has any passenger airliner ever offered forward-facing windows?
We could start with the Tupolev ANT-20 with its rather daring forward-facing passenger gallery. [edit - the prime seat right at the front in the gallery was for the navigator and his equipment.]


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Like the Tupolev, most examples are inter-war. Here is the moderately successful Latécoère 521 being assembled showing its gallery beneath the cockpit [edit - seems this was only for the navigator, not for passengers] : 


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... and the more esoteric Caproni Ca.60 which would have made for an interesting journey had it entered service -


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-- EDIT - one special mention for the Junkers G.38 which also had a sizable glazed area in the wings. Unfortunately as far as I can tell (and despite what Wikipedia says) neither the nose nor wings were accessible by the passengers, but rather used by the navigators and engineers, which seems like a missed opportunity. [ed. the wing area was indeed intended for passenger, see comments] 


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