The Spectrum was an indoor arena in Philadelphia, Pennsylvania. Opened in the fall of 1967 as part of what is now known as the South Philadelphia Sports Complex, after several expansions of its seating capacity it accommodated 18,168 for basketball and 17,380 for ice hockey, arena football, indoor soccer, and indoor lacrosse. The last event at the Spectrum was a Pearl Jam concert on October 31, 2009. The arena was demolished between November 2010 and May 2011.