Designed by Valerio Dewalt Train Architects, Charter One Pavilion is an outdoor concert hall in Chicago. It is located on Northerly Island on the grounds of the former Meigs Field general aviation airport. Construction started in 2005. The venue seats 8,000 people and hosts many different musical artists and shows. Due to a settlement agreement made by the city of Chicago to maintain the island as a nature preserve, the Charter One Pavilion is a temporary structure. It must be assembled each spring and disassembled each fall.