In the 19th century someone put 20+ cat statues on top of random NYC buildings. Nobody knows who or why!
No one knows for certain why there are a bunch of mysterious cat statues dotting the city of New York. It is believed that in the 19th century, they were intended to attract people to shop (an interesting marketing technique) or to amuse children. Others believe that they were put up to scare pigeons.
The 19th century may have ended but the demand and appreciation for these cat statues hasn’t. Some residents personally decorate these statues and there are urban legends that these cats help to protect the residents in the city (although judging but it's crime rate, they aren’t doing a very good job). Architect Tom Adams even adds cats as his artistic signature to some of the buildings he works on.