Inside Japan's $10 Billion Dollar Smart City Of The Futurebr br Welcome inside Japan's $10 billion dollar city of the future! This futuristic smart city will be the heaven on earth for tech guys! Not only is it the smart city of the future but also one of the most expensive city projects in the world! Toyota, the world's largest automaker, is building the world's first smart city in Japan. Woven City, located near the base of Mountain Fuji.