The Church of Agios Rokkos (Saint Roch) in Splantzia Square is one of Chania's most elegant and unique architectural gems, representing a rare example of purely Venetian ecclesiastical design that has survived almost intact.

Built in 1630 during the period of Venetian rule, its construction is deeply connected to the veneration of Saint Roch, who in Western Christianity is considered the protector against the plague. The date of its completion suggests that the church was built as a votive offering by the citizens following an outbreak that struck the city, in hopes of divine protection.

Architecturally, Agios Rokkos stands out for its circular shape (rotunda), a style that follows the Renaissance standards of the era. It is a small, modest temple with a vaulted roof, exuding a sense of harmony and proportion. Its exterior is characterized by Doric simplicity, with stone cornices and symmetrical openings attesting to Italian influence. Despite the Ottoman conquest that followed shortly after its construction, the church was never converted into a mosque but was used for various purposes, which helped preserve its original form.

Today, Agios Rokkos no longer functions as a church but remains a vibrant cultural space in the heart of the old town. During the years of the Cretan State, it served as a Gendarmerie station, while today it frequently hosts art exhibitions and cultural events. Standing next to the imposing church of Agios Nikolaos, it serves as a humble yet noble reminder of the power of faith and art against the trials of history.