terminal element of many domes, in the form of round or polygonal newsstands on which rests a cusp coverage. In addition to its decorative function and crowning, It constitutes the core of the dome light source. Already used by the Romans becomes important reason in the composition of Renaissance and especially Baroque churches. specimens: L. by S. Peter's, L. by S. Ivo alla Sapienza in Rome, L. of Chapel della Santa Sindone a Torino, designed by G. Guarini, etc.
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