With Michelle Obama set to usher in a new era as first lady starting January 20, all eyes are on her role in the White House. Beginning today, the Smithsonian Institution is turning one of their most popular attractions -- the First Ladies Collection -- into a compelling new exhibit, and ET has your personal guided tour with curator Lisa Kathleen Graddy!

The "First Ladies at the Smithsonian" exhibit features 14 of America's most historic garments, including those belonging to Jackie Kennedy, Dolley Madison, Mary Todd Lincoln, Mamie Eisenhower, Rosalynn Carter, Laura Bush and even Martha Washington.

More than 90 other objects and personal possessions are on display, including portraits, White House china and other related items and personal possessions from the Smithsonian's unique collection of first ladies' materials.

Watch ET for more news on America's first ladies!