Geoglyphs are considered to be large designs or motif created on the ground made of clastic rock or other similar durable material on the landscape. Some of them, like those at Nazca, were made by the careful removal of soil in the dry desert, and due to specific weather conditions, the intricate designs have remained largely untouched and well preserved for researchers to study. On Earth, there are numerous mysterious geoglyphs that defy explanation. In this article, we take a look at some of them, trying to understand their origin, purpose, and meaning. The mysterious Nazca Lines The Nazca lines are considered as the most important and most famous geoglyphs ever discovered on our planet. The mysterious lines, geometric shapes and animals are found in the Nazca desert in Southern Peru, and are believed to have been created by the Nazca people for an unknown reason sometime between 200 B.C. and 500 A.D. At Nazca, scholars have identified over 800 straight lines, 300 geometric figures