(except playoffs, which cost more). Tickets go on sale hours before the first pitch on the game day and cannot be ordered in advance. The stadium features three levels of upscale luxury seating. The largest of the three, the Norfolk Southern Club, is a two-story indoor lounge exclusively for fans with tickets in sections 206–221. The lounge is and features various food entities, live television broadcasts of the game on dozens of TVs, and views of the Anacostia River. It was previously named the Stars and Stripes Club until the naming rights were purchased by Norfolk Southern Railway in 2014. The PNC Diamond Club, the naming rights of which were purchased by PNC Bank, is on the field level between the two dugouts. It was remodeled and expanded into two floors before the 2016 season. The Delta Sky360 Club seats are located right behind home plate and are the most expensive seats in the stadium and include access to an indoor lounge. It was previously named the Lexus Presidents Club until Delta Airlines purchased the naming rights in 2016. As features were changed, added, or removed, seating capacity has changed repeatedly since the stadium opened; the number of seats has dropped slightly several times since it opened in 2008. In the inaugural 2008 season, seating capacity was 41,888; as of 2016, the seating capacity is 41,313. The seating capacity increased to 41,339 in 2017. Nationals Park contains a split in the upper deck, a homage to Griffith Stadium. Non-baseball events Nationals Park has hosted several non-baseball events, such as concerts and business meetings. Hockey On January 1, 2015, the National Hockey League held its "Winter Classic" – the New Year's Day traditional outdoor game – at Nationals Park. A hockey rink was constructed on the field where the home team Washington Capitals hosted the Chicago Blackhawks. The Capitals scored the game-winning goal with 13 seconds left in the 3rd period, defeating the Blackhawks, 3–2. Concerts Performers who have held concerts at Nationals Park include Billy Joel, Taylor Swift, Lady Gaga, and Paul McCartney, among others. Papal Mass On April 17, 2008, Pope Benedict XVI celebrated Mass at Nationals Park for 47,000 people during his visit to the United States. There were 200,000 requests submitted for tickets to the Mass. References External links Stadium site on MLB.com Near Southeast DC Redevelopment - Nationals Park Nationals Park page on Ballparks.com Nationals Park