I am wondering if "to which" can be replaced by the word "where".
Here is my question. Please help me. He went to the shop in which his dad works. = He went to the shop where his dad works.
The sentence is correct, but how about the following sentence?
His dad works in the shop to which he went. = His dad works in the shop where he went. Is it correct? Or should I say, "His dad works in the shop where he went to."?