An interesting hypothetical came up in discussions at work today.. which city would be considered the capital of the world? I bet most monkeys here would be biased toward saying NYC is the world's capital, but let's not forget a capital city is by no means defined as being the largest or most active city of a nation, think of Washington DC, Canberra, Ottawa, etc. Capitals are generally administrative centers charged with hosting the seat of Government. With that in mind, where would you pinpoint to be the bastion of unified global political power?
In my opinion it would have to be Geneva, home to a few of the most important international organisations such as the United Nations, WTO, WHO, Red Cross, among others. According to different sources there are between 170 and 300 NGOs with their headquarters or local offices in Geneva. Geographically Geneva is also quite close to both Eastern and Western Europe, Africa, the Middle East, and arguably the East coast of the US. Politically, Switzerland itself is a very neutral country. If the US is the schoolyard bully, and China is the class nerd, Switzerland would have to be the high achiever - the passive guy who gets along well with everyone and is generally quite good at everything. When a fight breaks out in the playground, Switzerland is the guy in the corner brokering bets on the outcome.
As a disclaimer I do live in Switzerland so I be might be a little biased myself, but I would be interested to hear a case for any other cities that would be in the running for Earth's capital, if God forbid, we ever had to choose..