Boasting a hull longer than the Empire State Building is tall, Samsung Heavy's Prelude has been floated out of dry dock in Geoje, South Korea for the first time. It measures 488 m (1,601 ft) long and 74 m (243 ft) wide. The ship belongs to Shell's Prelude floating liquefied natural gas (FLNG) facility, which upon completion will also be the largest floating facility. Continue reading for a video and more information.
Here's a bit more information from Gizmag: "Intended to allow production of natural gas, the processing of it into liquefied natural gas (LNG) and finally the transfer directly to transport ships, all while at sea, the Prelude will weigh more than 600,000 tonnes (661,400 tons) fully loaded and is expected to produce around 3.6 million tonnes (3.9 million tons) of LNG per year. Its total storage capacity is over 430 million liters (114 million US gal), or equivalent to around 175 Olympic swimming pools."