World of Warcraft's initial Battleground offerings were based around classic competitive game modes: capture the flag, conquest and domination modes from first-person shooters, and so forth. Mists of Pandaria's Battlegrounds are built upon the same concept, borrowing beloved concepts from other games while stepping up to embrace the competitive innovations of more recent titles. The mechanics are a bit more complicated than simply capturing a flag, but they're no less beloved by the gamers who see them in action.
Temple of Power
Much as Warsong Gulch is set on the border of Ashenvale Forest and Arathi Basin takes place in the Arathi Highlands, the Temple of Power is set in the new zone called the Vale of Eternal Blossoms. The temple contains an artifact that could turn the tide of war should it fall into the hands of one faction or the other, so the Horde and the Alliance have taken to the battlefield to claim it.
The artifact sits in the center of the map. Whoever claims the artifact must hold onto it as long as possible -- a difficult task, since not only is the opposing team trying to kill you and recover the artifact for themselves, but the artifact also causes a constantly increasing amount of damage over time to its bearer. The longer you hold it, the more dangerous holding it becomes. Once the bearer of the artifact dies, it falls to the floor and another player of either faction may pick it up.