We've been inundated with questions about Sydney through our Curious Sydney project.
So now we're opening up three of the questions to be voted on by you.
The three questions below have been selected by us from more than 250 submitted by the ABC's Sydney audience.
The winner will be investigated by an ABC News journalist, who will work with the audience member who asked the question.
To vote in this round, simply select which of the questions below you want to see answered.
Voting closes at midnight on Wednesday September 13 — so you have until then to share this voting round with your family and friends.
The results will then be posted on Facebook and Twitter, so keep an eye out!
If you have another burning question about Sydney that you want answered, you can also submit it below.
So what are you curious about?
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