Forbidden Fortress

The Forbidden Fortress is an Enchanted Forest location featured on ABC's Once Upon a Time. It first appears in the second episode of the first season.

Before the Curse
The Forbidden Fortress is home of Maleficent and her black unicorn in the Enchanted Forest. It is first visited when Prince Charming, on a mission from a deal he made with Rumplestiltskin, fights Maleficent to place the true love potion inside her for safekeeping. Later, the Evil Queen visits Maleficent to take back the dark curse, which she previously traded for the sleeping curse. The two battle and the Evil Queen wins, taking back the scroll containing the curse.

Trivia

 * The Forbidden Fortress resembles Maleficent's fortress as seen in Walt Disney's Sleeping Beauty, where her domain is called the Forbidden Mountains.

Appearances
Verbotene Festung Castello Oscuro