The Shrine of Two Moons is the major Horde capital city within the Vale of Eternal Blossoms and all of Pandaria. It is an enormous two-story structure located east of the Emperor's Approach. Contained within are members of the Pandaria-related factions, including the Anglers, Golden Lotus, Lorewalkers, and Shado-Pan, just to name a few.
All the typical amenities associated with a major city can be found here, with the exception of profession and class trainers (at least currently). A flight trainer is also here, ready to teach flying to any new level 90 players that happen to pass through.