In which language is the word "parallel" always written "paral·lel"?

In standard Spanish, the "ll" form is pronounced rather like a "y" in English. Examples of this are found in place names such as La Jolla, California. But in Catalan (spoken in Catalunya, North-East Spain) there are two separate "ll" sounds. One is like the Spanish version, "y". The other is a bit like the English version in "miller" or "teller". To make the pronunciation clear, some "ll" words are always written with a middle dot, like this: "l·l". So "paral·lel" is pronounced rather like "parallel" in English, and does not follow the model of "La Jolla". The picture is of "Hotel Paral·lel" in Barcelona, the capital of Catalunya.