The Fortress of the Sun is a prominent structure located in the fictional universe of the animated series He-Man and the Masters of the Universe. It serves as the primary base of operations for the heroic characters, including He-Man and Prince Adam. The fortress is known for its impressive architecture and magical defenses, symbolizing hope and strength in the battle against evil. The fortress is situated on the planet Eternia, where it overlooks the vast landscape and serves as a strategic point in the ongoing conflict against the villainous Skeletor. Its design incorporates elements of both technology and magic, reflecting the series' blend of science fiction and fantasy themes.