Buying a 3D printer is exciting, but you'll need projects and models to make it all work. These free sites offer a huge range ...

The standard facilitates the representation of geometry, topology, semantics, and appearance attributes, so that urban objects can be interpreted meaningfully by different software systems. By ...

This article was originally published on May 4, 2015. To read the stories behind other celebrated architecture projects, visit our AD Classics section. Arches have long been used to mark the greatest ...