Westfalenstadion

The Yellow Wall, Borussia Dortmund's South Stand, before a home game against Wolfsburg in May 2010: one steep terrace of standing fans, flags already up. The stand holds about 25,000 people on its own, and it is often called the largest terrace in Europe. Signal Iduna Park, still Westfalenstadion to many locals, opened in April 1974. Get in well before kickoff, because the flag waving and the chanting start long before the teams walk out.