On this day in 1980, Pink Floyd’s eleventh studio album “The Wall,” began it’s 15-week residence atop the Billboard charts. The rock opera, which explores abandonment and isolation, was released on November 30, 1979 and sold over 19 million copies worldwide between its release and 1990. Following the release of the album, Pink Floyd kicked off The Wall Tour, where, during each performance, a 40-ft high wall was constructed between the band and the audience, and torn down during the show’s finale. “The Wall” remains one of the most profitable albums in the U.S., but is Pink Floyd’s second best-selling album, behind “Dark Side of the Moon” (1973). In 2003, Rolling Stone awarded “The Wall” the #87 spot on its “500 Greatest Albums of All Time” list.