Faces & Places of Yesterday Prince George’s Plaza in 1959 Feb 22, 2013 This is Prince George’s Plaza in the “Wonder Years” era. It was actually an open-air mall in those days. Reminds me of this mall photo we posted a while back. May 29, 1959. “Prince George Plaza, Hyattsville, Maryland. Night view.” An actual mall (a long, open plaza) when it opened in 1959, the shopping center was enclosed in the 1970s and renamed the Mall at Prince Georges. Large-format safety negative by Samuel H. Gottscho.