Century III Mall

Century III Mall is a defunct enclosed shopping mall located along Route 51 in West Mifflin, Pennsylvania, approximately 10 miles southeast of downtown Pittsburgh. The mall was built on a former slag dump in 1979. The Century III Mall planning began in 1976, opened in 1979, and closed in 2019.

It was the third largest shopping mall in the world at the time of its opening. The mall was originally developed and owned by Edward J. DeBartolo Corporation. From 1996 to 2011, Century III Mall was owned and operated by Simon Property Group. The vacant mall site is currently owned by Las Vegas-based Moonbeam Capital Investments LLC.