2K Games and Firaxis have released a handful of new maps as downloadable content for Civilization V
, all pooled from the same group they're calling the "Cradle of Civilization".
You can grab the Mediterranean, Asia, the Americas or Mesopotamia - each for US$2.99, or all as one pack for US$9.99 from Steam. As far as I can tell, there's no price difference for Australia barring our current conversion rate (in that, there's no 'specific' Aussie hiked price-point). Click here
for more info from Steam, and the thumbnails below for a better look at the new maps.