What architectural features characterize the design of traditional cisterns in Mallorca?

Traditional cisterns in Mallorca, known as "cisternes," are designed primarily for the storage of rainwater, a critical resource on the island due to its Mediterranean climate. These structures often feature a rectangular or square plan, maximizing the volume of water they can hold. The walls are typically constructed from local limestone, providing durability while blending with the island's natural landscape.

One distinctive architectural feature of these cisterns is their thick, vaulted ceilings. These ceilings are not only functional, providing structural integrity and minimizing evaporation, but they also create a cool environment that helps preserve the stored water. Many cisterns are adorned with decorative elements such as pointed arches or small windows, contributing to their aesthetic appeal while allowing for air circulation.

Additionally, the entrance to the cistern is usually a set of stone steps leading down into the chamber, emphasizing the subterranean nature of these water-storage systems. Some cisterns are connected to an elaborate system of aqueducts and channels, showcasing the advanced hydraulic engineering skills possessed by the island's historical inhabitants. Overall, Mallorca's traditional cisterns reflect the island's adaptation to its environment and efficient use of natural resources.