The Joker wreaks havoc across Gotham City with no apparent aim, leading to spectacular explosions, high-rise confrontations and a spine-chilling character study from Ledger.

BBC: Batman's nemesis crowns dark tale

They offer a unique geography, flora and fauna (including a pleasingly spine-chilling collection of venomous creatures), fascinating traces of the country's first inhabitants, and enough empty space to give visitors from more crowded places agoraphobia.

ECONOMIST: A survey of Australia