clever bike rack design in Scotland at the Holyrood building, the Scottish parliament

If you walk up to it, it might seem to be some abstract nonsense, but if you look down a row of them:

For some other interesting bike racks: http://justacarguy.blogspot.com/search/label/bike%20rack

https://sunpig.com/martin/2004/11/07/unemotional-design-the-new-scottish-parliament-building-at-holyrood/
http://www.materiaincognita.com.br/ilusao-de-otica-transforma-todo-o-bicicletario-numa-unica-bike/