America's 25 Biggest Basketball Stadiums From Coast to Coast

21. Gallagher-Iba Arena: Stillwater’s Hardwood Cathedral

Dubbed “The Madison Square Garden of the Plains,” Gallagher-Iba Arena at Oklahoma State University blends intimacy with intensity. Though it seats just over 13,000, its steep design keeps fans close to the court, creating a raucous, pressure-packed environment. Opened in 1938 and modernized in 2000, it retains its historic charm while offering a top-tier experience. It’s named after wrestling coach Ed Gallagher and basketball legend Henry Iba—both architects of American sport. Few college venues feel this sacred; Gallagher-Iba isn’t just where games are played—it’s where legends are born.