Baroque architecture is a highly decorative and theatrical style which appeared in Italy in the late 16th century and gradually spread across Europe. It was originally introduced by the Catholic Church, particularly the Jesuits, as a means to combat the Reformation and the Protestant church with a new architecture that inspired astonishment, reverence and awe. It reached its peak in the High Baroque (1625–1675), when it was used in churches and palaces in Italy, Spain, Portugal, France, Bavaria and Austria. In the Late Baroque period (1675–1750), it reached as far as Russia, the Ottoman Empire and the Spanish and Portuguese colonies in Latin America. In about 1730, an even more elaborately decorative variant called Rococo appeared and flourished in Central Europe.
Baroque architects took the basic elements of Renaissance architecture, including domes and colonnades, and made them higher, grander, more decorated, and more dramatic. The interior effects were often achieved with the use of quadratura (i.e. trompe-l'œil painting combined with sculpture): the eye is drawn upward, giving the illusion that one is looking into the heavens. Clusters of sculpted angels and painted figures crowd the ceiling. Light was also used for dramatic effect; it streamed down from cupolas, and was reflected from an abundance of gilding. Twisted columns were also often used, to give an illusion of upwards motion, and cartouches and other decorative elements occupied every available space. In Baroque palaces, grand stairways became a central element.