I have always been fascinated by Crop Circles, the strange symmetrical patterns created by flattening of crops in farm lands. Crop Circles have been found world wide, majority of them have been sighted in UK. More than 80% of them are known to be man-made hoaxes, while the remaining seem to be totally unexplainable naturalistic or supernatural drawings. Frankly to me, most of these Crop Circles look so complex and symmetric to be made by humans. But there are people who make crop circles, surely they must be a talented lot. Some people believe Crop Circles to be made by UFO's while others believe it to made by geological anomalies. People like to believe in the supernatural when they see a phenomena that they cannot explain. In the movie "Signs", director M. Night Shayamalan did a splendid work in convincing people that Crop Circles were signs made by Aliens (or Extraterrestrials) to convey to other aliens to make an attack on Earth.
Another Mystery is the geoplyphs (lines made on the ground by removing rocks and sand) located in the Nazca Desert in Peru. These geoglyphs were believed to be created by the Nazcan Indians between 200BC and AD700. The Nazcan lines have been recognised as UNESCO World Heritage Site. The Nazcan figures are of animals, birds, insects and humans and these figures are so huge and cover hundred of metres and can only be seen as a complete figure from the air. The mystery in these drawing is that, how did the Nazcan's draw these figures without even seeing the whole image? and why did the Nazcans use the Nazcan desert as their canvas? Historians have been scratching their head for some time now, nobody has a clear idea. Some believe they drew big pictures to impress their gods so that the gods could see them from the heavens. Others believe these pictures show the direction of water in the Nazcan desert where water is scarce and then there are others who claim the figures to align to some celestial bodies. Some say that the Nazcans knew the science of flight - maybe a hot air balloon, which helped them to draw these large figures. As for me, I am confused as to how the Nascan's knew about animals and birds that didn't exist in a desert. There are lot of unanswered questions, the Nazcan mystery died with the Nazcan people. Fortunately the Nazcan lines remain to this day as the Nazcan desert doesn't receive any rainfall. As Climatic changes happen around the world and if rain were to fall in the Nazcan desert, experts say the Nazcan lines wouldn't stand a heavy downpour.