A hi-rise apartment building with no typical floor.  The architect gave the developer a choice of 26 apartment layouts, ranging from sudios to 4-bedroom/3-bathrooms units, including some duplexes.  The buyers were buying  apartments from floor plans while the buiding was under construction.  By the time in was completed, it was 100% sold out.  You can see from the photos that there are no two flors alike.