Overview: The Great Wall of China. Legend says it's one of the few man-made structures visible from space. Stretching for 4,000 miles across the north of China, it's estimated that more than a million soldiers died building and defending the wall. Fifty miles north of Beijing lies "The Wild Wall," a portion of the Wall that has more than a few dark corners. Locals report strange apparitions as well as the sounds of marching footsteps on the wind. In Kirvat Yam, Israel, there is a very large check for a million dollars waiting for photographic proof, proof of a mermaid. Dozens of locals have reported something that scared them at close range. A creature with a body covered in scales, the lower half ending in a fluked tail that splashed in the waves at sunset. The accounts detail a humanoid torso, with limbs and webbed appendages. The creature has an anthropomorphic face, wide-set eyes, and razor sharp teeth. Even though sightings of a humanoid sea creature date back 3,000 years, Greek Sirens these creatures are most certainly not.