The main feature of the structure called the Labyrinth in Greek myths is its intricate and confusing design, which was built to contain the Minotaur. Constructed by Daedalus on the island of Crete, the Labyrinth was so complex that even those who entered could not find their way out. It symbolizes complexity and entrapment, representing the struggle between order and chaos. The hero Theseus eventually navigated the Labyrinth, defeating the Minotaur, which underscored themes of bravery, intelligence, and overcoming obstacles.