The Roman Aqueduct at Moria is one of two sections of a 26 km long structure that supplied approximately 127 million litres of freshwater per day to Mytilene.
It was probably constructed at the end of the 2nd or the beginning of the 3rd century A.D. The fact that any of it is still standing bears witness to the strength of the original structure.
What amazes me even more is how they designed and built something that big way back then with minimal tools and only manual lifting. Definitely a miracle build.
What an incredible structure. What caused its collapse? Earth tremors perhaps? There are other Roman aqueducts still standing. As you say, a testament to the building skills of the artisans.