The unfinished obelisk of Aswan is the largest known ancient obelisk found till date. Though it was intended to be erected as an obelisk, It can be found exactly in the same place where it was once semi-carved from the solid bedrock. Unfortunately, the obelisk was never finished, probably due to the cracks which formed in the stone during the quarrying.
Located in the northern region of the stone quarries of ancient Aswan in Egypt, the unfinished obelisk is said to be about one third larger than any other ancient Egyptian obelisk ever erected. The huge gigantic size of this object is what makes it remarkable and different from the others of the same kind. It would have been a full third larger than any other ancient obelisk known to the world.
In fact, if finished, the 137 feet (42m) tall incomplete obelisk would have weighed around 1200 tons and even today, there are very few modern cranes that could move such a massive object. It is really difficult to imagine, how exactly did the ancient Egyptians planned to transport and erect it.
In all probability, during the process of removing the gigantic block of stone from its mother bedrock, a huge crack appeared in the granite, which made the stone unusable. Since the cracked stone block had no other usable value, the project was fully abandoned. The bottom side of the unfinished obelisk is, however, still attached to the bedrock.