In every town, you can find some things that seem funny, special or even weird. That also true for Reykjavik.
Some of these things are so with intention. Others are modified by the locals and you can call them street-art. The blue bike, i.e. is used as a gate. I found 4 of them, each in a different color. So, they can also be used as a meeting point. They are used, to close the pedestrian area for cars and vans. Only in certain times, they are opened to give permission to vans to deliver goods to the shops. In the meantime, they look way better, than a common red-white colored bar.
Some shops decorated their front with statues of vikings or trolls, mythical beings from the nordic sagas. Each region or county has its own culture and that’s what make traveling so interesting.