Are there cobblestone pavements in your place?

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Almost all the sidewalks and public squares in Lisbon are covered with mosaic-like cobblestones, which are called Calçada Portuguesa (Portuguese Pavement). Their designs are highly artistic, featuring motifs like wavy seas, wind roses, animals, zig-zags, checkerboards, multi-pointed stars, royal emblems, and historical dates. I love the environmental concept of this pavement, because the stones are unsealed and porous, they allow water to naturally infiltrate the ground and mitigate heat reflection. However, these pavements can become incredibly slippery when wet and uneven over time, making them a well-known trip hazard. Since I have tripped several times while walking on them, I learned the hard way that I cannot wear high heels on Portuguese cobblestones.