Cost: $1 million
Donald Trump spared no expense for his marriage to model Melania Knauss. The bride's Christian Dior gown cost about $100,000, decorated with more than 1,500 hand-stitched crystal rhinestones and pearls. Over 500 guests attended, including Hillary Clinton, Katie Couric, Matt Lauer, Rudy Giuliani, Simon Cowell, Barbara Walters and Regis Philbin. An extravagant reception made to look like Versailles was held at Trump's Mar-a-Lago Estate in Palm Beach, where guests snacked on caviar, drank Cristal, and were entrained by Billy Joel and Tony Bennet.