Tokyo is the capital city of Japan .The Greater Tokyo Area is the most populous metropolitan area in the world. Tokyo is in the Kant region on the south-eastern side of the main island Honshu and includes the Izu Islands and Ogasawara Islands. Formerly known as Edo, where it is a good place for tourism In 2011, the city hosted 51 of the Fortune Global 500 companies, the highest number of any city in the world, at that time. Tokyo ranked third (twice) in the International Financial Centres Development, Tokyo was ranked first in the "Best overall experience" category of Trip Advisor’s World City Survey(the city also ranked first in the following categories: "helpfulness of locals", "nightlife", "shopping", "local public transportation" and "cleanliness of streets"). In 2015, Tokyo was named the Most Liveable City in the world by the magazine Monocle. Tokyo was ranked first out of all fifty cities in the 2015 Safe Cities Index] The 2016 edition of QS Best Student Cities ranked Tokyo as the 3rd-best city in the world to be a university student. ] Tokyo hosted the 1964 Summer Olympics, the 1979 G-7 summit, the 1986 G-7 summit, and the 1993 G-7 summit, and will host the 2020 Summer Olympics and the 2020 Summer Paralympics.