Twisted

Tiles.
The Parque Guell, 17ha or 42 acres, was originally meant as a city. As every city, it has a main square, with a fantastic view over the city and the Med.
And there is a public bench. Just one. Well, it is the longest in the world, 826 meters, half a mile. The bench is in the shape of a sea snake, and decorated with broken tiles, in a technique known as trencadis. Here is a view of a part of it.

And some more detailled views of the tiles.

Quelque vues du banc de 826 m de long en forme de serpent de mer sur la grand place du parc Guell. Entierement decore de bouts de mosaique casses, il s’agit d’une technique nommee trencadis.