Building Reflection Optical Illusion is a neat effect that makes multiple buildings appear inside the columns of skyscrapers. Skyscrapers are generally lined with window after window, when the columns are staggered like a stair case you can get some very cool reflections as if there were buildings inside of them. It can almost be disorienting deciphering which is real and which is the reflection.

Awesome shot of a sky scraper reflecting onto its self

You can almost get lost in this Building reflection

So many towers!