Trajanic harbor2023-12-01T14:41:54Zjbeckertag:atlantides.org,2019:pleiades/e41821061c3b44229960f7c5f0f34965Trajanic harbortag:atlantides.org,2019:pleiades/e41821061c3b44229960f7c5f0f349652023-12-01T14:41:54ZThe hexagonal Trajanic harbor basin at Portus was built between 100 and 112. Its maximum diameter is approximately 716 meters.41.774704 12.251470 41.783501 12.251470 41.783501 12.266943 41.774704 12.266943 41.774704 12.251470