The iWireless Center (formerly known as The MARK of the Quad Cities) is a 12,000-seat multi-purpose arena located in Moline, Illinois. The arena has garnered numerous architectural industry awards since its construction. The facility opened in May 1993, under the name The MARK of the Quad Cities with the singer Neil Diamond as the opening act. It is home to the Quad City Mallards of the ECHL.