Posiciones

Para expresar posiciones de países, en Inglés se utiliza el verbo to be:

Zaragoza is in the north of Spain
Sevilla is in the south of Spain
Salamanca is in the east of Spain
Valencia is in the west of Spain
Madrid is in the centre of Spain

I am at university / Estoy (estudiando) en la universidad
I am at the university / Estoy (ahora mismo dentro de un efidficio) en la universidad

Pople study at university. Prior to that, students are in primary school, in elementary/middle school, in high school but most definitely (studying) at university.
She's doing a BA at X University; He's an undergrad student.
A student studies at university or at X University

equivalente en alemán