Iberian peninsula.
Only if it is part of a proper name: Spain is on a peninsula, but Spain is on the Iberian Peninsula.
Spain and Portugal share the Iberian Peninsula.
Iberian Peninsula.
Spain Peninsula Iberica
The Iberian peninsula.
The Iberian peninsula in Europe contains Spain and Portugal.
Spain and Portugal are located on the Iberian Peninsula.
The Iberian Peninsula is located in southwestern Europe. It is the third largest peninsula in Europe and contains the countries of Spain and Portugal.
Spain and Portugal
The Iberian peninsula.
# Spain # Portugal
Iberian Peninsula It includes Spain, Portugal, Gibraltar and Andorra. More information on http://en.wikipedia.org/wiki/Iberian_Peninsula