Today's Geo Quiz takes us to a city at the heart of ancient Persia.
The Persian Empire reached its peak 2,500 years ago.
It occupied what is modern day Iran and stretched way beyond into Western Asia and as far as the Caucasus.
So dig out your ancient history text books ...
'cause we're searching for the ceremonial capital of this once great empire.
The ancient city's ruins are impressive.

They've been designated a World Heritage site.
But the name of this Persian capital turns up in some modern places....
One Iranian soccer team is named after the city.
The name is also the title of a recent animated movie - about a girl growing up in Iran.
So give us the name of this Persian city if you can.