We usetowhen we are talking about movement in the direction of a point, place, or position:
Let’s all gotothe cinema tonight!
When you cometomy place, you’ll see our new pet rabbit.
[giving directions]
If you drivetothe end of the road, then turn left and park in the first car park on the right …
We often use the combinationfrom … to …when we are talking about moving from one point to another:
Is it farfromyour housetothe nearest shop?
How long will it take to getfromthe hospitaltothe train station?
Go inis a commonly used phrasal verb meaning ‘enter’. We don’t use it to talk about travelling to or moving in the direction of a place:
Why don’t yougo in?(phrasal verb meaning ‘enter’)
When did yougo toBarcelona?(prepositionto)
Not:When did you go in Barcelona?
We say that wearrive ata place, when we see it as point, but we arriveina larger area (e.g. a city or a country). We don’t usetowitharrive:
Iarrived atthe station just in time.(arriveata place)
Not:I arrived to the station…
It was 4 pm when wearrived inItaly.(arriveina country)
Not: …when we arrived to Italy.