Baroque churches are characterized by their grand and elaborate designs, which emerged in Europe during the late 16th century and continued into the 18th century. These structures often feature dramatic use of light, intricate decorations, and dynamic shapes, aiming to evoke emotional responses from worshippers. Common elements include ornate altars, frescoed ceilings, and detailed sculptures. The style is closely associated with the Counter-Reformation, a movement within the Catholic Church that sought to attract followers through impressive art and architecture. Notable examples of Baroque churches include St. Peter's Basilica in Vatican City and San Carlo alle Quattro Fontane in Rome.