Our world is filled with a variety of fascinating and unique cities, all of them vastly different from each other. It was a difficult task, but over the next two weeks we're gonna try to narrow our planet's cities down to a shortlist of the 25 most influential metropolitan areas. Send me a message on [email protected] to banter with me. The rankings are obviously very subjective, and were based off economic, cultural, political, and historical factors. Enjoy!