I have create real osm buildings for all Spain and Portugal using oms2city. You can download them on the following links.
(Duplicated buildings fixed)
Added canary islands.
Portugal:
https://drive.google.com/open?id=0B5TeZxXfefn3Vll5cGVEcndZMTg
Spain:
https://drive.google.com/file/d/0B5TeZxXfefn3Q2F5ejFfVHBRTlE/view?usp=sharing
Canary islands:
https://drive.google.com/open?id=0B5TeZxXfefn3NUp4NkM2b1hPVDQ
Lisbon at dusk:
Madrid:
Helicopter tour at A Corunha (Spain) - LECO: