Valyria was an ancient civilization in the world of A Song of Ice and Fire, known for its advanced culture and powerful dragons. It was located on the continent of Essos and was famous for its impressive architecture, skilled sorcery, and the creation of the Valyrian Freehold, a vast empire that dominated much of the known world. The civilization fell into ruin due to a catastrophic event known as the Doom of Valyria, which led to the destruction of its cities and the loss of many dragons. Survivors, including the Targaryens, fled to Dragonstone, preserving some of the last remnants of Valyrian culture and dragon-riding traditions.