The Most Captivating Superyacht Concepts of 2015 [READERS’ CHOICE SLIDESHOW]

From a floating pyramid to a submarine superyacht, here are the year’s most popular yacht concepts…

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From a massive floating pyramid to a submarine superyacht, the mad scientists of the yacht-design industry have been hard at work conceiving the world’s most farfetched and futuristic yacht concepts. And although most of these vessels will only ever exist in blueprints and renderings, they are sure to spark the imagination and give us a glimpse at the seas of tomorrow. Here, RobbReport.com has compiled a roundup of the ten most popular superyacht concepts of the year, according to our readers. —Compiled by Rebekah Bell