Signal Iduna Park - Borussia Dortmund

Westfalenstadion (lit. 'Westphalia stadium') is a football stadium in Dortmund, North Rhine-Westphalia, Germany, which is the home stadium of Borussia Dortmund. Officially called Signal Iduna Park for sponsorship reasons and BVB Stadion Dortmund in UEFA competitions, the name derives from the former Prussian province of Westphalia.

It has a league capacity of 81,365 (standing and seated) and an international capacity of 65,829 (seated only). It is Germany's largest stadium, the sixth-largest in Europe, and the third-largest home to a top-flight European club after Camp Nou and Santiago Bernabéu Stadium. It holds the European record for average fan attendance, set in the 2011–12 season with almost 1.37 million spectators over 17 games at an average of 80,588 per game. Sales of annual season tickets amounted to 55,000 in 2015.

The 24,454 capacity Südtribüne (South Bank) is the largest terrace for standing spectators in European football. Famous for the intense atmosphere it breeds, the south terrace has been nicknamed Die Gelbe Wand, meaning "The Yellow Wall". The Borusseum, the museum of Borussia Dortmund, is located in the north-east part of the stadium.