Demeter. Coarse-grained marble, Roman artwork; the head is a modern restoration. National Museum of Rome - Palazzo Altemps
Three Graces, Roman marble relief, circa 2nd Century A.D.
Map of Constantinople (1422) by Florentine cartographer Cristoforo Buondelmonte
Constantinople 2nd view...obviously the greatest fortified city on earth
A massive, well-preserved 1,700 year-old Roman mosaic was recently unearthed while performing city sewer construction. (Source in comment)