The "largest" ship can be defined in different ways: by length, weight, volume, or gross tonnage. This list focuses on a mix of these factors..

Prelude FLNG Type: Floating Liquified Natural Gas (FLNG) facility Length: 488 meters (1,601 ft) Width: 74 meters (243 ft)

Pioneering Spirit  Type: Construction vessel  Length: 382 meters (1,253 ft)  Width: 124 meters (407 ft)

Seawise Giant (Jahre Viking, Knock Nevis)  Type: Oil tanker (now scrapped)  Length: 458 meters (1,503 ft)  Width: 68 meters (223 ft)

TI Class Supertankers  Type: Oil tankers  Length: 380 meters (1,247 ft)  Width: 60 meters (197 ft)  Unique feature Among the largest oil tankers in operation.

MSC Gülsün  Type: Container ship  Length: 400 meters (1,312 ft)  Width: 61 meters (200 ft)  Unique feature: One of the largest container ships in the world.

Determining the exact cost of a ship, especially one that sank decades or even centuries ago, is challenging due to inflation, technological advancements, and the lack of detailed records. 

Oasis-class Cruise Ships  Type: Cruise ship  Length: 362 meters (1,188 ft)  Width: 66 meters (217 ft)  Unique feature: Known for their onboard amenities and entertainment.

MOL Triumph  Type: Container ship  Length: 399 meters (1,309 ft)  Width: 61 meters (200 ft)  Unique feature: Another giant in the container shipping industry.

Maersk Triple E Class  Type: Container ship  Length: 400 meters (1,312 ft)  Width: 59 meters (194 ft)  Unique feature: Known for its fuel efficiency.

Emma Maersk  Type: Container ship  Length: 397 meters (1,302 ft)  Width: 59 meters (194 ft)  Unique feature: One of the first of the Triple E class.