The Nazca lines were designated a UNESCO World Heritage site in 1994. They are a series of line art figures etched into the desert floor. The figures are typically animals, such as monkeys, fish, and llamas. It is believed that the Nazca people created the lines to be viewed by their gods. Deforestation if increasing the erosion in the Nazca Desert area, and there is concern that the lines may be in danger of being destroyed.