The ultimate ostentatious display of wealth, mega-yachts allow the world's elite to take their wealth on tour in a way nothing else can, and right now mega-yacht ownership is in the midst of an arms race. Software billionaires, Russian oligarchs and Middle Eastern sultans are scrambling to build the biggest yacht, the longest yacht, the most interesting yacht, the most outrageous yacht.

Here are the Top 10 Megayachts presented by Ross Bonander: