The Unfinished Obelisk is one of the most famous monoliths in Aswan. It is undoubtedly the giant obelisk ever built but never finished. It allows us to learn more about how Hatshepsut constructed such considerable things in ancient Egypt and the New Kingdom of Egypt.
The story of the unfinished obelisk:
It was built in a completely different way than other obelisks. It was built in the 18th Dynasty of the New Kingdom by Queen Hatshepsut, wife of King Thutmose II (1478-1458 BC), to go to the Karnak Temple and match the Lateran Obelisk, which was initially in Karnak but was moved to Rome. It is still in its original place in the Aswan granite quarry.
It would have been 42 meters high, which would have made it the tallest obelisk in history, but the project was halted when cracks were found in the obelisk. It would have weighed 1,200 tons, making it the heaviest obelisk. The obelisk was made of a bedrock of red granite and looked like the ancient mound from the creation myth, where the world first appeared.
How was the obelisk assembled?

People think of the area where the obelisk is located as an open-air museum. The obelisk can tell us about the tools used to build this massive monument. For example, the obelisk was carved from dolerite, a small ball of a more muscular mineral than granite.
They also used a lot of creative ways to build the obelisk. For example, they drilled some small holes in the rock and filled them with wood chips, and water was applied to the chips. If you soak the obelisk, it will enlarge and separate from the base.