Uldaman is an ancient Titan vault buried deep within the Khaz Mountains, accessible from the Badlands. Partially excavated, it has since fallen into the hands of the Dark Iron dwarves who seek to corrupt its riches for their master, Ragnaros. It is a great introduction to the Titans and its lore is expanded upon by Uldum and Ulduar, areas which further explain the Titan mythos and the origination of life on Azeroth.