I had a snooze and then headed out to see some sights. Wouldn't you know it - I met an Aussie Traveller (the only person I spoke to). And he was from Coorparoo!
I managed to catch a concert, see a church, an ancient water cistern, take a train across town and have a local meal. A great day.
I almost got lost wandering around a suburb near the city walls and feared I would miss my transport to the airport! But I was just misreading the time.
I flew out at 11pm to arrive in Tehran at 3am.