Location:
It situated 4 Km from Aswan train station.

Who built it?
Most probably this obelisk belongs to Queen Hatshepsut, one of the rulers of the 18th dynasty and the royal wife of king Tuthmosis II. This queen was the owner of Al Deir El-Bahari temple in the eastern bank of Luxor. Also there is an opinion said that it belongs to Queen Nefertiti.

Explanation:
The unfinished obelisk is considered the largest piece of stone ever handled. Four boats were strapped together, and three obelisks were laid crosswise.

The Egyptians then waited for the flooding waters to carry the boats away. Hatshepsut recorded that work on one of her obelisks took 7 months. It weighs about 1200 tons.
When the obelisk was about to be finished, they found a flaw in the rock so they stopped the construction, and began in a new one.