Tar Valon is a prominent city in the fantasy series "The Wheel of Time" by Robert Jordan. It is located on an island in the River Erinin and serves as the home of the Aes Sedai, a powerful group of women who can channel the One Power. The city is known for its impressive architecture, including the White Tower, which is the center of Aes Sedai training and governance. The city is surrounded by a massive wall and features a unique layout, with streets radiating from the White Tower. Tar Valon plays a crucial role in the series, serving as a hub of political and magical activity, influencing events throughout the world.