Deep in the desert of New Mexico is a place called Chaco Canyon. Although it is in ruins today, if you wind the clock back around 1000 years, it was the home of a bustling civilization. The Chacoan Indians collected sandstone blocks and hauled timber from great distances to build their houses and communities. They were so ahead of their time, that they remained the largest buildings in North America for many hundreds of years. The Chacoans performed ceremonies in kivas, circular rooms, which are entered via ladders from the roof. They also carved ‘petroglyphs’ into the cliff walls, commonly drawing snakes, spirals and stick figures. Lack of rain is thought to have caused the Chacoans to leave for wetter areas. Have a look at the pictures below to see how their buildings have slowly crumbled away.