The city of Miami in the United States has recently been undergoing an extremely colourful makeover.
Artists have been invited from around the world bring their special type of graffiti to walls and buildings.
The graffiti covers up old, messy surfaces with spectacular pictures and vibrant colour.
The artwork will remain for a year or two before it's replaced by brand new graffiti art.
It's hoped that the new look will attract more people to the city to live, work, and even just visit.