The traveling museum exhibit about the life of Princess Diana opened this past Friday in Philadelphia. This is the first time it's been back since 2007. The exhibit "Diana: A Celebration," features over 150 artifacts organized into 9 galleries, one of them being Style & Fashion. Some fashion items displayed include her famous wedding dress with the 25 ft. train, plus gowns designed by Versace, Valentino and Chanel among others. The exhibit will be in Philadelphia through December 31st at the National Constitution Center and tickets go for $23. You can click here to purchase tickets.