Length: 408 feet
Top speed: N/A
Total power: N/A
Katara is a mystery among the super yachts, as details about the interior and owner have been kept fairly secret. The 408-foot behemoth was launched in April 2010 and was known as Project Crystal while being built.
It was built in Germany by Lurssen Yachts' in-house naval architects and was designed by Monaco's Espen Oeino Naval Architects.
The super yacht is worth an estimated $300 million and flies the Qatari flag.