Mega-yacht Eclipse leaves dock 5 of shipyard Blohm + Voss in Hamburg, Germany, June 12, 2009. The... 
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As the world's largest yacht glided out of Blohm + Voss shipyard in Hamburg, Germany, last week, crowds of onlookers watched the vessel and, perhaps, dreamed of who was onboard the mega-cruiser.
Reports have surfaced that Russian billionaire Roman Abramovich is the proud owner of the 557-foot ship, which Blohm + Voss Industries would not confirm.
"Our company is not allowed to talk about it," a company representative said.
Regardless of the owner, the Eclipse is now in first place on the list of the world's largest yachts. It reportedly features a missile-detection system, two helicopter landing pads, a swimming pool and a submarine that doubles as an escape pod.
It also features an armor-plated master suite, as well as bullet-proof windows to keep its master and commander safe.
According to London's Daily Mail, the Eclipse was designed to overshadow the world's former largest yacht, a 525-foot super-cruiser owned by the Sheikh of Dubai.
Here's a look at the remaining nine of the Top 10 largest yachts in the world.
Named for its country of residence, the Dubai was originally built by Blohm + Voss for Prince Jefri Bolkiah of Brunei.
It was later sold to the Sheikh of Dubai for an undisclosed amount, although it was considered the most expensive yacht in the world, at an estimated value of $300 million, when it was built in 2006.
The Dubai reportedly features five VIP apartments and six luxury apartments. The yacht has a helicopter pad, small submarine, squash room and spa, according to Yacht Critic.
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