A lot of restaurents have hear "Casa de fado" within the name. Unfortunatly, I don't find a formal 'definition' of this fado route, so should we add it as relation anyway? osm.wiki/Route#Walking_routes_.28also_hiking_and_pilgrimage.29

Are this ruins?

Hier in der Gegend soll eine größere Fläche mit Solarzellen bebaut worden sein? http://www.svz.de/nachrichten/home/top-thema/artikel/kiesgrube-wird-zum-solarkraftwerk.html

I'm not sure, but I think this was a church?

Is this building related to this WP article? https://pt.wikipedia.org/wiki/Pal%C3%A1cio_Foz_de_Arouce

Maybe "MiradOUro"?

At BING this road is still under construction. Please update if anybody has local knowledge

Is this parking underground or at the place itself?

AFAIK is FNAC the shop with electronics...music. Maybe shop=electronics is more suitable?