navy Syracusia Notes References Sources External links Nemi Ships "Mad Emperor's Galley Emerges after 2,000 Years." Popular Science, November 1929, p. 59. 1st century in the Roman Empire 1st century in transport 1446 archaeological discoveries Ancient Roman ships Ancient shipwrecks Archaeological discoveries in Italy Buildings and structures demolished in 1944 Buildings and structures destroyed during World War II Replica ships Ships preserved in museums Shipwrecks in lakes Shipwrecks of Italy Caligula Lake Nemi