Tiles, tiles, tiles
Many of the buildings around Lisbon are covered with beautiful tiles like these...
We are staying on a street called Rua dos Prazeres, "Street of Pleasures", but the door to our tiny apartment is off a narrow alley where there are about 40 other small residences. There is still some decorative tiles as you enter. All of the sidewalks in Lisbon are made of little slippery square stones, some use black and white stones to create patterns.
I got a photo of some construction workers laying down the tiny limestone bricks.