It's almost certainly a reference to Oviedo: a city in North-Western Spain. The Cathedral is the biggest landmark in this city, which coincidentally, plays host to exchange students from Oregon every year. Also he mentions the pouring wine from over the head - this is a little inaccurate, it's actually cider that is poured like that, but it's a nice nostalgic song.
It's almost certainly a reference to Oviedo: a city in North-Western Spain. The Cathedral is the biggest landmark in this city, which coincidentally, plays host to exchange students from Oregon every year. Also he mentions the pouring wine from over the head - this is a little inaccurate, it's actually cider that is poured like that, but it's a nice nostalgic song.