The Umeda Sky Building was probably the most recognizable landmarks around Umeda before the completion of Grand Front Osaka which is walking distance from it.
The original plan was suppose to be double in size and build of what it looked like today.
This building project was started in the 80s but revised due to Japan economic bubble burst of the 1980s.
It was completed in 1993 with half of what it should be. Back then it was indeed very posh and futuristic in design.