The document discusses the Peruvian mystery of the Nazca lines, which are large geoglyphs found in the Nazca desert in Peru depicting animal figures such as monkeys, hummingbirds, dogs, and spiders. The lines were created by removing rocks and dirt to reveal lighter-colored soil underneath, and some of the figures can only be seen clearly from high altitudes, leaving scholars perplexed as to how and why the ancient Nazca people created the mysterious lines.