This may be an incredibly stupid question but I'm having a bit of trouble with it.
If I want to write:
I transferred flights at the airport.
Then I know I need to use 'at the' as 'airport' is a noun.
but what if I want to specify the airport to be Sydney Domestic Airport?
I'm of (the perhaps wrong?) belief that 'Sydney Domestic Airport' is a proper noun and so you shouldn't need the preceding 'the'? But reading it out loud either way seems correct.
So what fundamental rule am I obviously forgetting from primary school? Go easy on me!