The Great Serpent Mound, found on the Serpent Mound Crater, is a three-foot-high effigy preserved by the Ohio Historical Society. It is the largest serpent effigy in the world, and extends about 420 meters. Coiling seven times, the serpent represents a sun, an egg, and the body of a frog. On the other hand, the Pyramid of the Sun is the largest building in Mesoamerica, and stands at around 71 meters high. The structure of the building is significant because the pyramid slightly points towards the direction in which the sun sets, twice in a year (April 29 and August 12). Although the Great Serpent on the Mound and the Pyramid of the Sun were built in different eras, they are both significant in that they have a symbolic representation of the sun.
Undoubtedly, the Serpent Mound is one of the greatest features in the world because of its magnificent length and breadth. The serpent Mound has an astrological significance in that its coils alignment matches the solstice and equinox events of the year. The structure gained credit after it was added to the National Hispanic Recognition Program in the 1966. However, it is not yet clear who between the Adena culture and the Fort Ancient Culture built the Serpent Mound. Despite this lack of clarity, the structure is quite symbolic because it portrays supernatural appearance and power.
On the contrary, the Pyramid of the Sun is attributed to the Aztecs who paid a visit to the Teotihuacan city around 100 A.D. At approximately 71 meters, the Great serpent Mound is the third largest Pyramid in the world. Like the serpent Mound, the pyramid has an astrological significance in that it points in the direction of the sun (precisely two times in a year).
Ching, Francis D. K., Mark M. Jarzombek and Vikramaditya Prakash. A Global History of Architecture . New York, NY: Wiley, 2010. Print.