Supergirls Fortress of Solitude

Supergirl's Fortress of Solitude was a fortress created by Supergirl in 1960. It was modeled after Superman's Fortress of Solitude, but devoted to souvenirs from Supergirl's life. The fortress was located in a desert, unlike Superman's fortress. However, after Archaeologist Damon Brant discovered it and used it to blackmail her, Supergirl destroyed it. ("Supergirl's Fortress of Solitude!")