While exploring Lisbon, you will run into many buildings that have intricately painted tiled exteriors. This is especially true of the many churches dotting the city.
The use of tiles dates back to the 15th where the use of tiles was used as both part of the construction process, as well as decoration.
The use of tiles became less popular during the early 20th century, but has had a revival in the past 50 years or so.
There are buildings sprinkled throughout the city that have tile work. Some look very old as there are cracked and very faded tiles, but that adds a rustic feel and you can see the history of tile work throughout the city on those building.