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Drawing by Etienne Du Pérac from the mid 16th century.
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Drawing by Giovanni Battista Piranesi from the mid 18th century.
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Drawing by Giuseppe Vasi feom the mid 18th century.
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Drawing by Luigi Rossini from the early 19th century.
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Drawing by Luigi Rossini from the early 19th century.
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North side. Photograph from 1999.
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South side. Photograph from 1990.
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