Where could you find hundreds of thousands of mailbox?
Options:
- porch
- hardware store
- front yard
- diner
- downtown area
Let's think now! Step-by-step reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Downtown areas have many business units which sends hundreds of mails. Mails are collected in the mailboxes in downtown areas.
So, the final answer is downtown area.