Question: what are the big cruise ships?
Answer: Symphony of the Seas. As you'd expect from the largest cruise ship in the world, everything about the Symphony of the Seas is on a large scale. ... 
Harmony of the Seas. ... 
Allure of the Seas. ... 
Oasis of the Seas. ... 
MSC Meraviglia. ... 
Norwegian Bliss. ... 
Quantum of the Seas. ... 
Norwegian Joy.