Every once in a while, I come across a really cool application for 3d printing. In 2015, the ancient city of Palmyra in Syria suffered significant damage at the hands of ISIS terrorists, including the destruction of the iconic Arch of Triumph. Subsequently, the Institute for Digital Archaeology (IDA), in collaboration with UNESCO, used 3D technology to create a scale replica of the arch. They utilized existing 3D models, photographs, and the detailed documentation available from before the destruction. A 20-foot-tall replica of the arch was 3D printed in sections using a stone-like material, and these sections were assembled to create a near-identical replica. This replica was then displayed in various locations around the world, including London and New York City, as a symbol of defiance and resilience, and to promote the importance of preserving cultural heritage.