This week on "Sunday Morning" (May 31)

The Emmy Award-winning "CBS News Sunday Morning" is broadcast on CBS Sundays beginning at 9:00 a.m. ET. "Sunday Morning" also streams on the CBS News app beginning at 11:00 a.m. ET. ( Download it here .) Hosted by Jane Pauley. A 1954 portrait of actress Marilyn Monroe. Getty Images COVER STORY: Marilyn Monroe at 100 She was, and remains, one of cinema's most brilliant stars. Norma Jeane Baker, known to the world as Marilyn Monroe, died in 1962 at age 36, but she left a legacy of classic films, fashion, and a carefully-crafted celebrity image. To mark the centenary of her birth, the Academy Museum of Motion Pictures is launching an exhibition, "Marilyn Monroe: Hollywood Icon." Correspondent Tracy Smith talks with those studying the sex symbol's life and career, and those who are preserving her film persona. READ AN EXCERPT: "Marilyn: The Lost Photographs, The Last Interview" For more info: ALMANAC: May 31 "Sunday Morning" looks back at historical events on this date. U.S.: Unveiling the history beneath the Lincoln Memorial For more than a century, one of Washington's best-kept secrets lay beneath the Lincoln Memorial: the Undercroft, a soaring 50,000-square-foot foundation built to keep the landmark from sinking into D.C.'s swampy ground. Beginning in June, the public will be able to visit the space, now with a museum tracing the memorial's history, from its construction to its role as a powerful stage for the civil rights movement. Correspondent Faith Salie goes underground. …