A short distance as the crow flies is made indefinitely longer by the steep drop and rise in the wall.
Tracy heads down into the interior of a watch tower.
A graceful curve in the wall takes it out of sight around a corner.
The Great Wall presents a very formidable barricade against attacks from the ground, and offers defenders a pretty serious advantage over their downhill foes.  It's no wonder nobody ever attacked it.
The Great Wall of China stretches off into the distance, dotted with tourists.
Tracy ascends the steep steps to the rooftop of one of the watch towers on the wall.
The Great Wall of China stretches off into the distance, dotted with tourists.
Tracy smiles during a rest from walking uphill.
The steep nature of the terrain means the Great Wall is mostly comprised of stairs.
A short distance as the crow flies is made indefinitely longer by the steep drop and rise in the wall.
A short distance as the crow flies is made indefinitely longer by the steep drop and rise in the wall.
A short distance as the crow flies is made indefinitely longer by the steep drop and rise in the wall.
See photo in original gallery.