Give some stream of consciousness and then the answer. The games are planned to be held from 24 July to 9 August 2020 in Tokyo. The city was announced as the host at the 125th IOC Session in Buenos Aires on 7 September 2013. It will also become the largest city ever in Asia to host the Summer Olympics, a distinction currently held by Seoul, which hosted the 1988 Summer Olympics. It will be the second time that Tokyo hosts the Olympics; it previously hosted the 1964 games.

Answer this question: where will the 2020 summer olympics be held?
The relevant information is: The games are planned to be held from 24 July to 9 August 2020 in Tokyo.
Therefore, the answer is Tokyo.