Throughout Lisbon, the sidewalks and plazas are paved with black and white stones.
The white is made of limestone and the black is basalt.
Can you imagine the effort that went into cutting each of these stones to shape and then carefully placing them in these intricate patterns?
It makes for striking visuals while shopping or crossing a plaza.
Even Albufeira gets in on the action, with sailboats on the sidewalk.
It sure made it hard to keep my head up and not just because the rainy morning made the stones slick.
Beautiful black and white.