If Gellért-hegyre is a stop on the tram line, then we (English speakers) wouldn't say "the Gellért Hill." It would simply be "The tram goes to Gellért Hill."
how are we supposed to get that place from audio when it was never mentioned before?
------- you're supposed to have already have visited magyarorsza'g e's budapestre . . .
Big 13 apr 19