❷ Sydney Airport

Sydney Airport is regularly in the spotlight thanks to its reportedly egregious charges for car parking.

But these form only a small part of total revenue – albeit a large contributor to profit margins! The company also receives revenue from charging airlines to dock their aircraft and for each passenger they carry (more than 100,000 travellers daily) and also charges retailers a lease for their stores and transport operators for ferrying passengers. None of its monopoly powers justify it being one of, if not the most, expensive airport listed on any stockmarket in the world.