Marina Zeas Project
A very interesting and promising project unveiling the history of the naval port of Athens. The Zea Harbour Project is a collaboration between the Ephorate of Underwater Antiquities, The 26th Ephorate of Prehistoric and Classical Antiquities and the Danish Institute at Athens.
There is also a great video here http://www.zeaharbourproject.dk/News-media/zea.wmv
which depicts the port in 3d animation.It is about 39MBytes.
Among other interesting finds, the length of the shipsheds found, caused a revision of the length of the trireme from 37 meters to 42-44 meters.
The base of the fortification that protected the port
A trireme shipshed.