Nazca Lines
Given the nature of the Nazca Lines, studying them had been hampered for a long time, as accurate documentation was hard to get ahold of. Being major landmarks, outside in the weather, many factors made it difficult to get records of them- weather, people moving around them, and general lack of preservation to the structures. As a result, M. Sauerbier and K. Landers strove to attain records that wouldn't be changed by rainfall, as the region had been relatively dry, and as such didn’t wash away the lines. With climate change becoming more of an issue, however, this could change at any time. Utilizing aerial imagery, they produced a 3D model of the northern part of the Nazca Lines, near the modern Palpa.