Gabilgathol

Gabilgathol (Dwarven for: "Great Fortress"), also known as Nâla ("Lode", "The Lode") and by a variety of euphemisms, is the great Dwarven city inside a hollowed out gigantic block of pitch quartz that serves as their capital and "homeland" after the Dragon Wars. The existence of Gabilgathol is a secret to almost all intelligent beings on the planet. Dwarves generally know about it, but anyone introduced to the city through confidence is bound by ancient magics to never talk about it if they are further away from the city than about ten kilometres.