Hello Trine
In the Valencian Community in Spain there are many different locations whith modern architecture which fit your needs.
One option is “Ciudad de la Artes” in Valencia http://www.cac.es. It’s a complex with a Science Musueum an Opera House and an Aquarium desgined by Santiago Calatrava. The fist three pictures have benn shot there.
The fourth one is from Benidorm a Tourism center 1h south form Valencia by car with many skyscrapers, hotels and modern buildings. Yo also have Ciudad de la Luz film studios http://www.ciudaddelaluz.com only 40 min ago from Benidorm.
If you need more information you can contact us by mail filmcommission@ciudaddelaluz.com or phone us +34 965 90 80 90
Regards,
Juan Gomis