This ancient civilization literally used their heads to move massive logs for miles

FACT: Pueblo peoples might have moved huge logs for over 60 miles by strapping them to their heads
Researchers always seem to be wondering how ancient civilizations moved big stuff around, but they rarely get the opportunity to try their theories empirically. 
Enter a team of anthropologists and physiologists from the University of Colorado Boulder. In the true spirit of experimental science, they strapped 136-pound logs to their heads to figure out how Pueblo peoples from Chaco Canyon in New Mexico might have carried the timber necessary to build their extraordinary architecture. 
Chaco Canyon was the most important political and ceremonial center for the Ancestral Puebloans. There, they built their famous stone and adobe dwellings along the cliff walls, ritual structures called kivas, as well as semi-circular constructions known as great houses. 
Scientists calculate that 200 thousand timbers were used in the construction of this particular site—but there are no trees anywhere nearby. In 2001, tree-ring experts at the University of Arizona used chemical analyses and discovered that the wood in the Puebloan constructions was sourced from mountain ranges at least 46 miles away—the furthermost, Chuska mountains, are 62 miles away from Chaco Canyon. 
Puebloans had no wheel, no draft animals, nor any other type of modern carriage system that we know of. Plus, archeologists have not found scrape marks on the grounds around Chaco Canyon that would hint at the logs being dragged or pushed. So, logs as big as 16 feet and 190 pounds had to be carried by hand. 
This ancient civilization literally used their heads to move massive logs for miles