We use the verb arrive with at or in to talk about ‘coming to’, ‘getting to’ or ‘reaching’ a place where a journey ends. If we see the destination as a point, we say arrive at. If we see it as a larger area, we say arrive in:
We arrived at the art gallery just as it was closing. (The gallery is seen as a point.)
Immigrants who arrived in the country after 2005 have to take a special language test. (The country is seen as a larger area.)
Warning:
We don’t say arrive to a place:
I always arrive at college about half an hour before my classes start.
Not:
I always arrive to college…