Where's Erin?

I could be in any city in the world...

But there are some defining features...

 

Here's a BIG hint...

And just in case two of the world's most iconic feats of architecture didn't give it away...

 I made it to Sydney!

Thanks to an amazing department at Curtin University, I had the opportunity to break out of the west and spend three days in Australia's biggest city. But it wasn't all about the Opera House and Harbour Bridge...