This looks like a museum floor tile where they put the directions to a certain exhibit which I think is really cool. It stands out against the normal brick, and is eye-catching whilst also being small and not really a big deal.
New Logo and Identity for Lafayette Anticipations by Wolff Olins
I've seen posters composed by real life objects before but this one is huge. It's 26 feet wide meters), 42 feet long meters) and 5 feet high centimeters). The poster was made by the design studio Snask for the Malmö Festival in Scandinavia.