Stromboli volcano

Strombolicchio is in fact a volcanic plug - a hardened magma that filled the ancient volcano's vent. Erosion has caused the terrain around the vent to disappear, but a strong and enduring lava neck proudly rises above the waters of the Tyrrhenian Sea, reminding us of a long-gone volcanic mountain.

An excerpt from the article 14 facts about Stromboli volcano
In Italian, "Strombolicchio" means "little Stromboli." On the top of this small island there is now a lighthouse, which can be reached by climbing over two hundred steps.