Fair enough SD
OK then just Europe........
Well Russia, West of the Urals is in Europe and I reckon you could fill the entire Top10 Worst from Russia alone.
My worst European hellholes as follows:
Samara - Russia
just vile - lung cancer is one of the many hazards here
Sheremetyevo Domestic
(compounded by the real prospect of impending death in a 40 year old TU 134) And by the way the Intl Terminal is really not that bad.
Podgorica - Montenegro
the only non Russian airport with a true flair for awfulness.
Worst Western European Airport?? Probably a toss up between CDG and LHR can't make my mind up.