Actually named Therstilidalode, which means Oath-kin Wind Citadel in Dwarven, it’s usually referred to as Tradewind in Common.
Originally built entirely enclosed with heavy stone walls, the ceiling is now largely destroyed due to the massive dragon attack.
Built above the Ufaretia (Life Bearer) River which supplies the citadel with its water supply. Rather than build the city alongside the river, the founding dwarves redirected the river using a series of dams, spillways, canals, and so forth, creating a massive underground aqueduct for the river to run through.
Four massive gates, known as the Wind Gates, mark the only entrances into the citadel: North, East, West, and South. Each gate has an angel bound to it, which act as guardians for the gates when they’re closed for the night.