Photos from Ostia Antica, Rome's ancient seaport; the bathhouses at Ostia, with their heating system, toilets, sauna and mosaics; the Baths of Diocletian are huge; the church of Santa Maria degli Angeli e dei Martiri was built using parts of the baths such as columns and vaulted ceilings - baths are over 1 square mile; the Memorial of the Fosse Ardeatine (335 innocent people were killed by German SS troops in retaliation for the killing of German solders in an ambush by Italian partisans. The 335 were rounded up on March 24, 1944 by SS troops and killed and thrown into mines. The mines were blown up to hide this massacre.); the Arch of Constantine, which was the start of the establishment of Christianity, early Christian churches from after the fall of the Roman Empire, and "Asia," a watch dog at Isola Sacra.
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