George and Amal Clooney: $4.6 Million - $13 million

Hollywood’s most famous perennial bachelor finally committed on September 27, 2014.

George Clooney and international human rights lawyer Amal Alamuddin literally took over the canals of Venice, Italy. The multi-day wedding celebration essentially shut down portions of the historic floating city to ensure maximum privacy from global paparazzi tracking the couple. Guests like Matt Damon, Emily Blunt, and Anna Wintour were chauffeured via private water taxis between the ultra-luxury Hotel Cipriani and the 7-star Aman Canal Grande resort. The design choices spared no expense, featuring $300,000 in custom artisan banquet tables, $250,000 worth of floral architectures, and a towering, four-tier Art Deco chocolate wedding cake.