There are different prepositions that we can use to refer to a place, depending on the meaning.
So, we can think of:
a point (at the cinema, to / from London)
a line, in terms of length (across / along / on a river, road)
a surface, in terms of a flat area (across / off / on a table, floor)
enclosed space (in / into / out of / outside / within a room, car, forest)
Now, sing along: