Today’s cruise ships are several times as big as the Titanic. Subscribe and turn on notifications 🔔 so you don't miss any videos: http://goo.gl/0bsAjO Cruise ships are freaking big. They’re the biggest passenger vessels humans have ever built. In size and appearance, they look nothing like almost any other boat. So how did they get that way? The predecessor of today’s cruise ships was the ocean liner: big, beautiful ships that sailed across the Atlantic. But ocean liners had a totally different purpose from cruise ships: They were for transportation. Everything about them was designed to facilitate an ocean voyage from one continent to another. But air travel changed that. Planes eliminated the main reason to take a ship somewhere, and ocean liner business plummeted. So the industry pivoted and began selling a ship as the destination itself. The cruise ship was born. But the ocean liners, built for a voyage, weren’t ideal for the purposes of a cruise, and over the next few decades, the cruise ship began its evolution. And it has culminated in the behemoths we see today. Sources: You can check out some of Peter Knego's own videos on cruises here: null Transport Revolutions: Moving People and Freight Without Oil: https://www.google.com/books/edition/Transport_Revolutions/inp0DwAAQBAJ?hl=en&gbpv=1 Deck plans for ships like the MSC Meraviglia: https://www.cruisemapper.com/deckplans/MSC-Meraviglia-1187/deck16-1558 More on the history of ocean liners and the S.S. France, later renamed S.S. Norway: http://www.classicliners.net/SSNORWAY.html Queen of the Fleet by Jay Clarke: https://www.washingtonpost.com/archive/lifestyle/1980/06/08/queen-of-the-fleet/cafc86a4-4b82-42d0-99f8-8b1a985c63f6/ More information on the difference between ocean liners and cruise ships: https://cruise.blog/difference-between-ocean-liners-cruise-ships https://www.marineinsight.com/naval-architecture/cruise-ships-and-ocean-liners/ Vox is an explanatory newsroom on a mission to help everyone understand our weird, wonderful, complicated world, so that we can all help shape it. Part of that mission is keeping our work free. You can help us do that by making a gift: http://www.vox.com/givenow Watch our full video catalog: http://goo.gl/IZONyE Follow Vox on TikTok: http://tiktok.com/@voxdotcom Check out our articles: https://www.vox.com/ Listen to our podcasts: https://www.vox.com/podcasts