The Ramesseum is the memorial temple (or mortuary temple) of Pharaoh Ramesses II ("Ramesses the Great", also spelled "Ramses" and "Rameses"). It is located in the Theban necropolis in Upper Egypt, across the River Nile from the modern city of Luxor. The name – or at least its French form, Rhamesséion – was coined by Jean-François Champollion, who visited the ruins of the site in 1829 and first identified the hieroglyphs making up Ramesses's names and titles on the walls. It was originally called the House of millions of years of Usermaatra-setepenra that unites with Thebes-the-city in the domain of Amon. Usermaatra-setepenra was the prenomen of Ramesses Laser scanned point cloud image of a headless Osiris pillar, second court, from a CyArk/Supreme Council of Antiquities research partnership Ramesses II modified, usurped, or constructed many buildings from the ground up, and the most splendid of these, in accordance with New Kingdom royal burial practices, would have been his memorial temple: a place of worship dedicated to pharaoh, god on earth, where his memory would have been kept alive after his death. Surviving records indicate that work on the project began shortly after the start of his reign and continued for 20 years.

The design of Ramesses's mortuary temple adheres to the standard canons of New Kingdom temple architecture. Oriented northwest and southeast, the temple itself comprised two stone pylons (gateways, some 60 m wide), one after the other, each leading into a courtyard. Beyond the second courtyard, at the centre of the complex, was a covered 48-column hypostyle hall, surrounding the inner sanctuary. An enormous pylon stood before the first court, with the royal palace at the left and the gigantic statue of the king looming up at the back. As was customary, the pylons and outer walls were decorated with scenes commemorating pharaoh's military victories and leaving due record of his dedication to, and kinship with, the gods. In Ramesses's case, much importance is placed on the Battle of Kadesh (ca. 1274 BC); more intriguingly, however, one block atop the first pylon records his pillaging, in the eighth year of his reign, a city called "Shalem", which may or may not have been Jerusalem. The scenes of the great pharaoh and his army triumphing over the Hittite forces fleeing before Kadesh, as portrayed in the canons of the "epic poem of Pentaur", can still be seen on the pylon. Only fragments of the base and torso remain of the syenite statue of the enthroned pharaoh, 62 feet (19 metres) high and weighing more than 1000 tons.] This was alleged to have been transported 170 miles over land. This is the largest remaining colossal statue (except statues done in situ) in the world. However fragments of 4 granite Colossi of Ramses were found in Tanis (northern Egypt). Estimated height is 69 to 92 feet (21 to 28 meters). Like four of the six colossi of Amenhotep III (Colossi of Memnon) there are no longer complete remains so it is based partly on unconfirmed estimates