The Toranomon Hills (虎ノ門ヒルズ) near Toranomon Station is a new skyscraper building that just got finished and open to public on the 11th of June 2014. It is currently the 2nd tallest building in Tokyo, just next to Tokyo Midtown. The most interesting point of Toranomon Hills is that the image character is Toranomon (which looked exactly like Doraemon except the color and with ears and tail)!
This building consist of floors for office, hotel and residences. Other than that, the 1st floor to 5th floor is open for public in the forms of garden, restaurants, and conference hall. You can have a leisure walk in the garden, or having lunch/dinner at the famous and delicious restaurants there.
By the way, Toranomon (虎ノ門) actually meant Tiger’s strips. The image character, Toranomon was designed by the same manga artist named Fujiko.F.Fujio. The setting of this image character, Toranomon is a cat-type robot come from 100 years from now with a time machine.
Toranomon Hills website: http://toranomonhills.com/en/