Umeda Sky Building: Striking conjoined skyscrapers with a garden rooftop observation area, restaurant & cocktail lounge.
The 173 meter tall building consists of two towers that are connected with each other by the “Floating Garden Observatory” on the 39th floor. The observatory offers great views of the city through its windows and from its open-air deck. In the basement, there is a restaurant floor that replicates a town of the early Showa Period, while offices occupy most other floors.
Photos below from http://www.japan-guide.com/e/e4002.html as it was a rainy day when we were there.
My Personal Photos on a Rainy Day: