An isolated section of the Karnak temple in Luxor, along with some palm trees

The Karnak temple in Luxor is a temple built of sandstone, with almost the entire structure made of stone, leaving very little greenery in the whole structure. However, we did see some trees inside the structure, such as the palm trees seen in this photo.
Most tourists do a quick round of the temple, see the Hypostyle Hall, and then come back; very few people bother to see the entire section visible to tourists (and there are large sections of the temple that are not open to tourists as well).
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