Sid Meier's Civilization V: Brave New World

This one lets you put children in the factories. It also teaches you that communism is a superior ideology to all other ideologies! Would recommend for those above the age of 3.

This expansion pack a lot including new wonders, civilisations and a new victory type: tourism. The new civs include Poland, Brazil and what is in my opinion the most interesting new civ, Venice. The tourism system replaces the old cultural victory. How it works is that some buildings and wonders now have slots to put great works in which give you tourism but some buildings with multiple slots have theming bonuses that gave extra tourism and your tourism accumulates with other civs and if your tourism is more than another civs culture you will become influential with them and once you become influential with everybody you win a tourism victory.

Not really worth buying unless it's on sale. You won't notice much difference.