Oprah Winfrey gave $12 million Tuesday to help build the Smithsonian's new National Museum of African American History and Culture, seen here in a scale model (lower center). The facility is expected to open in 2015. Allison Keyes/NPR hide caption

itoggle caption Allison Keyes/NPR

The June issue of The Oprah Magazine includes an article with details on Oprah Winfrey's new farm in Hawaii. The Oprah Magazine hide caption

itoggle caption The Oprah Magazine

Lance Armstrong, during the interview with Oprah Winfrey that was recorded Monday and began airing Thursday night. George Burns/Oprah Winfrey Network/Getty Images hide caption

itoggle caption George Burns/Oprah Winfrey Network/Getty Images

Oprah Winfrey talks to cyclist Lance Armstrong in Austin, Texas, on Monday. The first part of the interview airs Thursday night. George Burns/Courtesy of Harpo/AP hide caption

itoggle caption George Burns/Courtesy of Harpo/AP

Lance Armstrong at the 2000 Sydney Olympic Games, celebrating his bronze medal performance. Pedro Ugarte /AFP/Getty Images hide caption

itoggle caption Pedro Ugarte /AFP/Getty Images