Bride and Groom: Heather Mills and Paul McCartney

Cost: $3.2 Million

The Deets: Paul and Heather were married in 2002 in County Monaghan, Ireland. The couple's 300 guests were treated to traditional Indian dancers, fireworks and an unforgettable night in an actual castle. But I guess money doesn't buy love. Well, this one didn't end so well either (and it cost MUCH more than the wedding)...