Greeting send from a reader from France

Gilles Koch very kind enough to send me postcard from France. Thank you !

As I'm not fond with the language, attempt to find some clues of this postcard ...

Schéi Feierdeeg is in Luxembourgish means Merry Christmas. 

Joyeuses Fetes is in French means Happy Holidays 

*** WOW ! It's a Christmas Card ***

Luxembourg

1) Ville Haute - vue du mur Vanceslas / nocturne
2) TOur espagnole
3) Citadelle du St.esprit et rue St. Ulric
4) Viaduc de clausen et l'Alzette pittoresque