I was recently asked a question by my friend on the difference between:
- I am going to the library downtown.
- I'm going to the library in downtown.
At first, the second sentence didn't give me much sense, but I just read the sentence a couple of times, and the meaning it gave me somehow is that the first one is saying that the library is located in the downtown area (not a specific place), and the second one is saying it's located in a specific place called downtown (like maybe a mall called downtown - FYI there is a mall called downtown in my country that's why I thought of that).
So what do you think? What is the difference?