The "Pyramid of Darkness" is a fictional location from the animated television series G.I. Joe. It serves as a base for the villainous organization known as Cobra, where they plot to take over the world. The pyramid is depicted as a massive structure that harnesses dark energy, allowing Cobra to manipulate weather and create chaos. In the storyline, the G.I. Joe team must infiltrate the Pyramid of Darkness to stop Cobra's plans. The series highlights themes of heroism and teamwork as the Joes work together to thwart the villains' schemes and protect global security.