Wrocław is a city on the Oder River in western Poland. It’s known for its Market Square, lined with elegant townhouses and featuring a modern fountain. Also on the square is the Gothic Old Town Hall, with its large astronomical clock. Nearby is the Panorama of Racławice, a painting depicting the 1794 battle for independence. The Centennial Hall auditorium, with its giant dome and tall spire, lies across the river.