A white man wearing an orange shirt and dark green-brown pants, standing on the Great Wall of China. The wall is a brick and stone structure with intermittent towers, trailing up the hill into the distance.
A view out a lookout from a tower in the Great Wall of China. Bricks are seen in the foreground along the left margin of the frame. Another lookout tower is in the center of the frame. Crystalline basement rocks rise in the distance, to the north of the wall.
A view out a window of a lookout tower, framed by bricks, and with the Great Wall trailing into the distance along a ridgeline. Snow is present on the north side in the shadows of the wall (left side).
View of steps up the great wall (lower right of frame) and tilted brick wall angled from lower left and rising to upper right corner. Lookout holes for guards and archers are present in the brick wall.
The Great Wall at Mutianyu, north of Beijing.
Limestones and marine sed rocks fill the basin to the south, with crystalline basement rocks dramatically faulted and rising above to the north. The Great Wall straddles the first ridge.
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