Pillars inside the Karnak temple in Luxor, with a wall seemingly blocking the way

One of the pleasures of visiting Egyptian temples is the sight of the pillars inside the structure, and many of them were very well decorated. In the Karnak temple in Luxor, there are these pillars, although decay over the centuries seems to have stripped the carvings and other signs from the pillars. The scene behind the pillars also seems to have been blocked, with a wall behind it (although it is not clear whether this was a wall built in historical times, or in recent times).
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