Cruise ships can carry thousands of passengers in a single trip, and are some of the largest ships in the world by gross tonnage, bigger than many cargo ships. The following is a list of cruise ships with a gross tonnage larger than 120,000.
Symphony of the Seas is an Oasis-class cruise ship owned and operated by Royal Caribbean International. She is the largest passenger ship in the world by gross tonnage , at 228,021 GT , surpassing her sister Harmony of the Seas .
DNV GL Vessel Register.
Archived from on 11 February 2011. Retrieved 19 July 2012.
And Having here Sovereign Class Ship in same Class as Vision Class. I sailed on her twice, loved it!
You can see the vast difference in ships sizes below comparing the smallest to click