"Good Morning America" took an exclusive tour through the "Singin' in the Rain" star's California home to see first-hand some of the items that will be going up for auction in September.
Portions of the proceeds from the auction will be donated to Reynolds' charity The Thalians and to The Jed Foundation, an organization chosen by Billie Lourd, the granddaughter of Reynolds.
Inside the home of the late Hollywood legend, portraits of other famous actors adorned the walls, many of whom Reynolds called her close friends.
"Frank Sinata, Katherine Hepburn, Barbara Stanwick," Joe Maddalena, the CEO of Profiles in History told ABC News, listing a few of the portraits Reynolds owned. "All of these photos are inscribed to her."
Reynolds' son, Todd Fisher, told ABC News that his mother was passionate about preserving memorabilia from Hollywood. Over the years, Reynolds collected millions of dollars worth of Hollywood treasures, and began building her collection at the 1970 MGM Studios auction.
"She was passionate about preserving that history," Todd Fisher said. "She knew it was important, she just couldn't understand why the rest of the industry didn't think that."
"This was Carrie's bed," Todd Fisher told ABC News. "For about three years of her life...this was Carrie's bed."
Some of Reynolds' jewelry and costumes will also be auctioned, including jewelry pieces she wore to awards shows and the lavender dress she wore while singing "You Were Meant For Me" with Gene Kelly in "Singin' in the Rain"
Todd Fisher told ABC News that he remembers his mother's life as "a life well lived."
"She lived and did whatever she dreamed of," he added.
ABC News' Michael Rothman and Nicole Pelletiere contributed to this report.