Tokyo is one of the world’s foremost global cities. read about tokyo’s culture and history, and identify three ways that tokyo fits the “global city” mold. (site 1)

Its Gross Domestic Product (GDP) ranks amongst bigger cities New York and London. Had the highest GDP in its history at 1.5 trillion USD in 2008
Another is it's education level at a whopping 25.5% of its population with a degree or higher. 
Lastly its preserved culture well incorporated onto the modern society making it a uniquely diverse city among the other known cities around the world.