Santorini

The island's capital is Fira, located on the west coast of the island, on a cliff rising to a height of 260 m (0,16 mi) above sea level.

An excerpt from the article 27 facts about Santorini
Fira is a picturesque town on the bay, located on the caldera banks. It looks like it was carved out of a rock. It became the capital of the island in the 19th century.