Guimarães Shopping with 9 floors?

Happened in 2006, I think:
I went to Guimarães Shopping, more accurately to their car park. It looked underground this time, and it had nine floors, which is odd.
The mall has four floors: 0 and 1 are for shopping and 1 through 3 are for parking. The mall has a car park like the ones in the USA as opposed to an underground one.