The Vibrant Arena at The MARK, formerly known as The MARK of the Quad Cities, the iWireless Center, and the TaxSlayer Center, is a 12,000-seat multi-purpose arena located in Moline, Illinois. 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. The arena started using its current name on September 1, 2022.

Moline is a city located in Rock Island County, Illinois, United States. With a population of 42,985 in 2020, it is the largest city in Rock Island County. Moline is one of the Quad Cities at the confluence of the Rock and Mississippi rivers, along with neighboring East Moline and Rock Island in Illinois and the cities of Davenport and Bettendorf in Iowa. The Quad Cities had a population of 384,324 in 2020. The city is the ninth-most populous in Illinois outside the Chicago metropolitan area.