Tower of Paterna, Fortified tower in Paterna, Spain.

The Tower of Paterna is a truncated-cone tower 19.5 m tall, with a lower diameter of 12.70 m and an upper diameter of 9.60 m. Its first two floors have a square base and the third is octagonal, topped by a circular terrace ringed by eight projecting parapets with loopholes and eight merlons. A helicoidal staircase added in 1971 climbs the outside wall to the entrance.

The tower was built between the late 11th and early 12th centuries as part of a defensive system protecting Valencia. During the 14th century, its shape was transformed from square to conical, reflecting its strategic evolution over time.

The tower stands near traditional cave dwellings that were dug into the ground starting in the 18th century, showing how the growing population created practical housing solutions. These homes still shape the character of the place today and tell the story of how earlier residents adapted to their needs.

Access to the second floor is through an external spiral staircase added in 1971, leading to an octagonal upper section with views of the surrounding area. Visitors should expect that the structure is old and visits may need to be adjusted based on weather conditions.

The ground floor of the tower functioned as a water cistern, storing water for defenders and the local population. The second floor features an octagonal vault that demonstrates advanced building techniques of its era.