Morannon

The Morannon, also known as the Black Gate of Mordor, was a formidable fortress built by Sauron in the latter part of the Third Age of Middle-earth. Situated in the northwestern corner of Mordor, it served as the primary entrance to the dark land and a crucial defensive structure. The Black Gate was a massive structure, described as a vast and terrible gateway of stone, flanked by mountains known as the Ash Mountains and the Ephel Dúath, the Mountains of Shadow. Its construction was a testament to Sauron's power and his desire to keep intruders out and his forces contained within Mordor.

The Morannon was manned by Orcs and other servants of Sauron, and its presence instilled fear in all who approached. It was a symbol of Sauron's dominion and his relentless pursuit of power. During the War of the Ring, the Black Gate played a significant role. A desperate diversionary attack was launched against the Morannon by the forces of Gondor and its allies, led by Aragorn, to draw Sauron's attention away from Frodo Baggins's mission to destroy the One Ring in Mount Doom. Though the gate itself was eventually breached and destroyed by the combined efforts of the Free Peoples after Sauron's fall, its memory lingered as a monument to the darkness that once threatened Middle-earth.