This building, known as the Clock Tower, is an old lighthouse built in 1772 and transformed into a clock in 1904. This emblematic element is located in the Moll dels Pescadors, in Barcelona’ Barceloneta district. It is configured as a structure formed by a square base and a high foot that ends with a square body where the clock is located. The lower body is configured as a large square base in the shape of a truncated pyramid, with a cladding that mimics stone ashlars and a door on the eastern side that gives access to the body where the clock is located. This body is topped with a flat roof that serves as a terrace for the tower and was added when it was transformed into a clock. The door is configured as a narrow arch that is framed by another similar arch and creates a kind of niche. This body is topped with a cornice which is decorated on the underside of the cantilever with molded corbels. Then, the base of the tower is developed - also square - which has two clearly differentiated parts and is surrounded by an iron railing of helical bars. On the one hand the lower part, with a certainly pyramidal structure and a door on the same axis as the lower floor. This door is topped with a triangular pediment below which is a stone slab with the commemorative inscription of its construction. Separated by a small molding, next to this lower body, the tower itself is developed, with four faces where windows that allow light to be given to the staircase located inside are opened. Two of the faces (where the door is located and facing it) have a window in the central section of the frontispiece, while the other two sides have two openings, the lower one being higher but both are topped with a cantilevered dust cover and molded uprights. At the end of this body, the square volume where the four-sided clock is currently located is developed, which allows it to be observed from any point in the port. This body is topped with a dome and a decorated metal structure that culminates in a lightning rod. In 1743, the engineer Prosper de Verboom carried out a project to extend the Port of Barcelona, where, at the end of the western arm, he placed a lighthouse to direct the entry of ships. The lighthouse was the subject of numerous projects - some of them monumental - and was finally built in 1772 when the western pier was completed. In addition to the lighthouse, the dock housed the passport office, the sanitary control, the naval command and the practitioners' hut. As a result of the expansion of the port, the lighthouse - which was moved to Montjuïc - lost its function in 1904. The tower was not demolished and was converted into a clock tower.