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Bill Thayer's gazetteer of buildings and monuments: photographs and history. Also online editions of Platner's 'Topographical Dictionary of Ancient Rome' and Rodolfo Lanciani 'Pagan and Christian Rome'.
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Buildings of Rome in the Great Buildings Online database: images, descriptions and sources.
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Vasi published 10 books of etchings of the monuments of Rome (1746-61), which can be seen here alongside photographs of the same locations today.
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Selective essays by James Grout on the history and culture of ancient Rome, Greece, and Britain.
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Il sito ufficiale dei Fori Imperiali di Roma. Include una breve storia dell'Urbe, usi e costumi di Roma antica, la descrizione dell'area dei fori ed una visita virtuale.
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Kalervo Koskimies presents his own clear photographs, together with 18th and 19th century images, of the Classical and later monuments of the city.
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A book exploring the basilican church of Sant Agnese fuori le Mura, Rome, rebuilt 625-38 to replace a 4th-century church. Author's biography, reviews, images with extracts.
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A gallery of beautiful images of the central cathedral of the Catholic faith provided by Eternal Word Television Network.
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Digital photos and descriptions of major monuments by René Seindal.
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Virtual visit to the underground legacy of the city: photographs and descriptions of archaeological remains, catacombs and other sites. Also maps, glossary and news of discoveries.
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Chris Nyborg's guide to churches of all denominations in this city central to the development of church architecture. Includes biographies of their architects and artists.
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Paula J. Howarth tells the story of this villa built at the beginning of the 17th century by Cardinal Pietro Aldobrandini, with bibliography.