It looks like the Great Wall of China needs some work. The 2,000-year-old structure may be a world wonder, yet even iconic structures need a little upkeeping. Loose and eroded bricks are a threat to tourists, who travel from all over to scale the 13,000-mile wall. Even rebuilding the wall is risky, with some broken sections being hard to access. That’s why tech-savvy inventors are stepping in with a new solution.

Tech company Intel is working with the China Foundation for Cultural Heritage Conservationto help rebuild the Great Wall. As reported by Travel and Leisure, drones will scan 3D images of the wall’s broken sections. The machines could be particularly useful in the Jiankou section of the wall, where they can move around the mountainous terrain more easily than human surveyors.

Anil Nanduri, the vice president of Intel’s drone team, explained the process in a statement obtained by Travel and Leisure. “Using drones, we are able to inspect multiple aspects of the structure including areas that are quite inaccessible”, he said. “We look forward to leveraging our technology to aid in the preservation of more world heritage sites in the future”.