These Roman tombs have survived centuries, but exposure to the elements continues to threaten their integrity. Designers: Juan Carlos Gómez de Cózar and Manuel Ordóñez Martín (photography by Jesús Granada)What makes this canopy special isn’t just that it uses 3D printing technology, though that’s certainly impressive. The use of 3D printing technology opens up possibilities that traditional construction methods can’t match. Instead, smart design can create conditions where ancient sites remain accessible and experiential while getting the protection they need. As 3D printing technology becomes more accessible and sophisticated, we’ll likely see more projects like this one.