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Friday, June 19, 2026

The Sobriety Test You Didn’t Expect

If you ever find yourself at Rossio Square, beware of the wavy tiles! They’re famous for creating that optical illusion where the ground looks like it has random speed bumps popping up — but don’t worry, it’s actually flat (I double-checked before blaming my eyesight).

Walking across it is already confusing enough when you’re sober… so I definitely wouldn’t recommend trying it after a drink too many. You’ll start wondering whether it’s the pavement moving or you. 😂

57 comments:

  1. Yes, I can see how that could be a problem. I've fallen a few times. I'd be afraid I'd lose me balance.

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  2. Even sober, that looks a little dizzying! ☺

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  3. I can just imagine a Friday night with a few people who have had one drink too many getting trapped in there, while everyone else is trying to work out how to get around the obstacle! 🤣

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  4. I can just imagine a Friday night with a few people who have had one drink too many getting trapped in there, while everyone else is trying to work out how to get around the obstacle! 🤣

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  5. Oh my goodness, how awesome but of course it's true how one could fall over, best not look down and pick the feet up when walking there, that is my advice for me😉

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  6. This doesn't seem like a place I would like to walk.
    I think many older people have trouble with this, it would make you dizzy.
    I wish you a very nice weekend.
    All the best, Irma

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  7. Wow! that really makes our eyes and heads spin!

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  8. I avoid places like that, with my cross-eyed vision I'd be dizzy and sweaty in no time

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  9. Oh my! It's beautiful but just watching the video is making me dizzy. HA! I already have a balance problem and especially at dusk when the shadows change I often think there's a bump in my way that I need to step over when there's actually nothing there. :/

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  10. It almost looks scary. I get dizzy just looking at it. Optical illusions are fascinating.
    Have a great weekend, Veronica!

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  11. Yes, that is some dizzy pattern, cool though!

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  12. Isn’t that amazing. An incredible area but I think I would get dizzy. Certainly wouldn’t want to miss this experience. What a beautiful place!

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  13. Es genial. Me gusto el video. Te mando un beso.

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  14. Che pavimento meraviglioso e pericoloso al tempo stesso

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  15. Wow, that looks cool! Might make me feel dizzy though.

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  16. That undulating paving is beautifully made, but whether I will go over it is a question mark, as I am already feeling dizzy.

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  17. ...I'm more dizzy than normal!

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  18. Those tiles looks beautiful, and what an illusion. I think it's interesting how some places in the world actually tile public places rather than like here where it just get's blacktop. Have a wonderful rest of your weekend.

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  19. Beautiful but a little dizzy looking!

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  20. Makes me dizzy ~ great photos ! Hugs ^_^

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  21. From one angle it looks flat with the wavy lines painted. But that first photo is so textured. Yes, it would be hard to walk it!

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  22. Ohja liebe Veronica, das sieht wirklich aus als wären es Stufen wenn man ganz lange darauf schaut. Tolle optische Täuschung und ein grandioser Effekt.

    Liebe Grüße
    Kerstin und Helga

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  23. Oooh...no ........ just no ! 🤣

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  24. Oh man, you are not kidding! Walking across Rossio Square after a couple of drinks feels like trying to navigate a Mario Kart map in real life. Those black and white waves look cool in photos, but when you're actually there, your brain completely misfires trying to figure out where to put your feet. It’s the ultimate architectural prank. You’re just trying to walk normally, but instead, you look like a glitching video game character trying to step over invisible hurdles. Glad it’s not just me whose depth perception gets absolutely wrecked by that pavement! 😂

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  25. This is so accurate it hurts. Walking across Rossio Square after a couple of drinks honestly feels like navigating a glitchy video game map. Those black and white waves look amazing in photos, but in reality, your brain completely misfires trying to figure out where your feet are supposed to land. You end up looking like you're trying to step over invisible hurdles just to walk in a straight line.

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  26. Muy cierto lo que dices, y mejor hacerlo sobrio, no despues de haber tomado unas cervecitas😂 La plaza es preciosa. Gracias Verónica. Buena semana.
    Un abrazo.

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  27. HA! This would play with me 100 percent sober. LOL!

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  28. Those wavy tiles would make me dizzy.

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  29. wow yes very mindblowing! making me dizzy just looking at them here.
    cheers
    sherry

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  30. The craftsmanship is amazing! I can't imagine how long it took them to lay all those tiles down to form that wavy pattern. Oh, and I agree, that would not be a place to walk after a few drinks... LOL!

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  31. A pavement that makes sober people walk cautiously is a pretty impressive piece of design. 😂

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  32. I can just imagine trying to navigate this after a drink or two!

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  33. They are wavy tiles in many city in Portugal....And the are beautiful !
    Thanks for your visit !
    Have a nice week !
    Anna

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  34. That's why in Portugal we can drink it all up without problems.
    Practice makes perfect! ( kkk )
    Keep well!

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  35. Oh my, that makes me dizzy just looking at the video. Imagine walking through that pavement area. It's pretty, but a little too wonky for me. I hope you enjoy the rest of the June days, and have a sweet day!

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  36. Those wavy lines definitely would make me dizzy. :)

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  37. Hello,
    Wow, I think the wavy design would trigger my vertigo.
    Take care, enjoy your day and the week ahead.

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  38. This is such a fantastic discovery! The wavy pattern really is a wildly unexpected balance test. I even felt a little dizzy just looking at the photo. I would expect the effect would be even more pronounced depending on different lighting!

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  39. Eine sehr beeindruckende handwerklich geschickte Arbeit. Sicher war es sehr schwer die Steine so zu verlegen. Das Ergebnis ist sehr schön geworden. Sicher ist es besser, nüchtern dort entlang zu laufen.

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  40. What a cool optical illusion!

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  41. I love that Rossio Square! It must be very strange to walk over those stripes!

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  42. Lulu: "Our Dada needs a dramamine looking at that tile!"

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  43. Jaja.. muy interesantes las baldosas y su efecto óptico. Un abrazo.

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  44. In Alicante there is also place with this type of tiles ;)
    Angelika

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  45. Yikes, that is too much. It makes ones stomach turn just to look at it!

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  46. How fascinating!! Camera often flattens things, but this was clearly visible in your photo and video.

    -Soma

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  47. Very cool but somehow these waves make me dizzy

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  48. Very cool Somehow the waves make me feel dizzy though :)

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  49. It's amazing how artists can create optical illusions like that. Even knowing the ground is really flat, I think I would be scared of falling.

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  50. Es muy bonita, por España tenemos algunas así, en Alicante es una de ellas. Besos.

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