Dusseldorf (DUS) 6 a.m. to 9 p.m. (summer); 9 a.m. to 8 p.m. (winter) 1-2.20 euros One ticket gives access to two observation decks at the airport that are quite large and provide views of ...

Happily, some airport observation decks are still around; and equally appreciated. Matt Hillier, a computer software instructor from Layton, Utah, always looks forward to spending time at the ...