Zendikar is the heart of the Tiamat Imperium and homeworld of the dragonkin, both the Dragonborn and the true dragons themselves. It consists of vast floating continents suspended by magic in a world of endless winds and storms above an endless sea. These landmasses drift slowly through the air, alternatively forming unbroken lands or splintering into countless small flying islands of rock over hundreds of years. At their peak, they are large enough to support varied biomes and huge populations of Dragonborn citizens as well as other subjects of the Empire. All of the wealth of the Empire flows into Zendikar, forming bustling trade cities of gilded metal and polished marble.
Long ago, the lands were said to be stable and whole, until they were fractured and sent into the skies by the wars between Tiamat and Bahamut. With her loss, Bahamut and the golden dragons were exiled into the depths of the Starsea, prophesied to return again one day in the distant future. Regardless of its truth, Zendikar today is teeming with raw magical energy, but all of the known dragons are chromatic and Tiamat is universally worshipped as the one true mother of dragonkind.