It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Archeologists are opening a cave sealed for more than 30 years deep beneath a Mexican pyramid to look for clues about the mysterious collapse of one of ancient civilization's largest cities.
Archeologists are now revisiting a cave system that is buried 20 feet beneath the towering Pyramid of the Sun and extends into a tunnel stretching for some 295 feet (90 meters) with a height of 8 feet.
Sarabia said the tunnel was first discovered in the early 1970s but it was closed soon afterward, and most of the information about it was lost when the archeologist who found it died.
The first major archaeological excavation of the site was done by Leopoldo Batres in 1906. Batres supervised restoration of the Pyramid for the 1910 centennial of Mexican independence. Some aspects of Batres' reconstruction of the pyramid have been questioned by later archaeologists. Subsequent excavations of Teotihuacan have continued to the present. In 1925 Pedro Dosal discovered skeletons at the 4 corners of the foundations of the temple, which he interpreted as human sacrifices at the dedication of the temple.
Pyramid of the Sun. Early reconstruction work by Leopoldo Batres in the early 20th century has unfortunately removed evidence of the true appearance of the pyramid, including its original height. It is now around 215 feet (65 m) high with five tiers, though the fourth and fifth tier were divided by Batres and there were probably only four original, roughly even tiers.