Tikal, Guatemala. You need some good thigh muscles — not to mention reliable balance — for climbing those stairs.
Flying over the vast Maya Biosphere Reserve and Tikal, a Mayan city dating back to 900 BC. The doorway photograph below is at the top of the temple on the right.
Early morning with the local tourists in Temple I. If you got up before dawn and hiked up to the top of the temple you could watch the mist rising while listening to all the howling monkeys and bird calls coming from the jungle canopy below.