Once a statue was ready, it would be led out of the valley and guided towards its ahu. The ancient roads leading out of Rano Raraku were concave, which aided and supported the moai"s side-to-side rocking movements. However, not all moai made it to their ahus – some lost balance along the way and tumbled off the roads. Visitors to the quarry will see the ruins of dozens of abandoned statues littering the outer slopes and roadsides; it"s the best place on the island to get a sense of the immense number of moai created. Lipo"s study found that these fallen moai have breaks consistent with falls from a vertical standing position, strengthening the theory that they walked.