Wikipedia:Articles for deletion/Lists of protected heritage sites in the German-speaking Community of Belgium
Lists of lists are useful and not against guidelines or policy. There is even a category for them and also guidelines for creating them here 
— User:Domdeparis, 07:07, 17 November 2018 (UTC)
Stance: keep
Cited policy: WP:LISTOFLISTS (Wikipedia:Stand-alone lists)