We use どこ with particles very often, like you do in English with "at, in, on, to, from, etc". We put particles just after どこ, so ee say どこに、どこへ、どこで、どこを、どこから、etc. Besides, we use どこ for "everywhere, nowhere, etc", with particles, どこでも、どこにでも、どこからでも、どこへも、どこにも、etc. So, there are many use of どこ in Japanese.
I hope this wal helpful though it's only a little.