Doubles the effect of all Cathedrals in your cities.
May trigger Golden Age for Religious civilizations.
The beauty of Rome's Sistine Chapel has long served as a testament to the mixture of strong religious beliefs and the love of art shared by the people of Renaissance Europe. Michelangelo devoted four years to painting the mural that adorns the ceiling, a work depicting events in the book of Genesis and other Biblical stories. Few visitors to the Sistine Chapel have failed to be moved by the artist's dedication to his subject, or his feeling for the nature of human struggle, suffering, and spiritual triumph.