Carvings on the walls of the Karnak temple in Luxor

A set of carvings on the walls of the Karnak temple. As per the hieroglyphic language used by the ancient Egyptians, this would mean something that experts would be able to decipher (I was not able to decipher them obviously since I am not an expert); but it was interesting to see the carvings that were made on the stone of the temple, done so many centuries ago, retaining their form even after so many years.
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Symbols on the side of one of the Obelisks inside the Karnak temple

The Obelisk is one of the most important symbols from the history of ancient symbol. They were built to denote a closeness to god, and were typically erected at the entrance to temples. Over a period of time, invading powers took away many of these Obelisk and put them inside their cities. So you can find many of these Obelisk in cities such as Rome, Paris, London, etc. In this particular photo, you can see Hieroglyphs on the side of a Obelisk inside the Karnak temple.
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Block with large amount of carvings inside the Karnak temple in Luxor

One of the great things about ancient Egyptian architecture is the fact that a large number of the monuments from that era (which can be as much as 45 centuries back) retain some amount of the work done. So, there are temples which retain some of the structure, pillars that have a lot of the carvings still there, paintings that retain the form and still appear clear.
In this case, you can see a section of stone with the carvings (deep carvings in the stone) that seem very clear and anybody who can read the language is able to understand the writing clearly.
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Cairo Pyramids - A full wall containing symbols from long ago next to the Great Pyramid

This is a wall of a structure right next to the Great Pyramid. The structure has a wall, which in this was covered by almost intact set of symbols, in a hieroglyphic based language.