792B9D9D-39EB-4B7E-8079-C445B7F1F189

Published May 18, 2019 at 5184 × 3888 in 792B9D9D-39EB-4B7E-8079-C445B7F1F189

Presentation on how the harbor was built. It was an amazing piece of engineering for its time.

wanderingbishops.com