The Spires of Naples ("spire" in Italian: guglia; plural, guglie) are three monument columns in the historic center of the city of Naples, Italy. The term "plague column" is commonly used in English for such structures since in many places in Europe such columns were built to celebrate the end of or deliverance from the plague. They were common in the Catholic countries of Europe especially in the 17th and 18th centuries, when their ornateness became one of the most visible features of Baroque architecture. The columns may also be termed "votive columns" or "votive spires" and may also be connected with calamities other than the plague, such as earthquakes or volcanic eruptions, or may simply be manifestations of faith, atonement, or expiation.