The information you are looking for is available here.
To the website of the Tokyo Metropolitan Government
Font Size / Color Settings
You can set the font size and color for display on this website. Settings will apply to all pages, and to future visits.
Provided by Google machine translation
Tokyo Metropolitan Government
It is global navi from here.
The global menu is here.
Sightseeing courses that use the Toei Transportation network
Access from the Airport
Body text is here.
Local navigation up to here.