The World's Largest Cruise Ship: Allure of the Seas

Taller than Nelson's Column, longer than four football grounds, owned and operated by Royal Caribbean International - MS Allure of the Seas is the world's largest cruise ship. Together with her sister ship, Oasis of the Seas, she holds the record for the largest passenger ship ever constructed. The Allure is just 50 millimetres (2.0 in) longer than the Oasis, making her technically the largest despite the fact that both ships have identical superstructures.