Student or Learner
The drugstore is next to the bank?
Which question is correct?
Where is the drugstore next to?
What is the drugstore next to?
Is it really important to say next to? Where is the drug store should be enough, don't you think so?
I would say "what is it next to?"
***Neither a teacher nor a native speaker.***
You can also ask:
What is next to the drugstore?
What (building) is next door to the drugstore? Say the bit in brackets, or leave it out.