Tokyo was rebuilt after World War II, setting the stage for it to become the largest city in history.

Japan's economy boomed in this new era, driven by advanced technology, a partnership with the US, and high levels of organization, and Tokyo grew with it.

Though Japan's economy has slowed since 1989, Tokyo remains the largest city in the world, with 37.8 million.

The Japanese capital has the most Fortune Global 500 companies of any city and by far the most Michelin-starred restaurants. It is known as the safest big city in the world.