Visitors are seen aboard a U-boat Worx C-Quester submarine during the 23rd Monaco Yacht show in Monaco September 25, 2013. The Monaco Yacht Show, which runs from September 25 to September 28, 2013, is... more 
Visitors are seen aboard a U-boat Worx C-Quester submarine during the 23rd Monaco Yacht show in Monaco September 25, 2013. The Monaco Yacht Show, which runs from September 25 to September 28, 2013, is considered the most prestigious pleasure boat show in the world, highlighting hundreds of yachts for the luxury yachting industry. REUTERS/Eric Gaillard (MONACO - Tags: BUSINESS SPORT YACHTING) less 
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Reuters | Photo By ERIC GAILLARD / Reuters
Wed, Sep 25, 2013 9:49 AM EDT