The TaxSlayer Center (formerly known as The MARK of the Quad Cities and the iWireless Center) 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. The facility was renamed as the TaxSlayer Center on October 1, 2017.
It is the home to the revived Quad City Steamwheelers of the Indoor Football League and the Quad City Storm in the Southern Professional Hockey League.