[fabianmg]

"While the countries have very different population/area ratio their capitals Copenhagen/Oslo/Stockholm are comparable."

I would say not even close....

Population:

Oslo .. 673,469 -- Barcelona .. 5.515 million -- Madrid 6.55 million --

Population density:

Oslo .. 3,500 people per square kilometer -- Barcelona .. 16,000 people per square kilometer -- Madrid .. 5,400 people per square kilometer -- `

[kasperni]

How did you get from Copenhagen/Oslo/Stockholm to Oslo/Barcelona/Marid?

[fabianmg]

Copenhagen : 602,481 Stockholm : 974,073

Still no comparable, but whatever, it seems you got your own opinion.