The recently-launched MS Symphony of the Seas is the largest passenger ship in the world, with a gross tonnage of 228,021 tons. She's also 1,184 feet in length, 215 feet wide and 238 feet high. She boasts a full-size basketball court, ice-skating rink, and two 43-foot rock-climbing walls, among many other facilities. There is also a 'central park' which contains over 20,000 tropical plants. Note: As of 2022, this is no longer the biggest cruiser in the world. Take a look inside this ocean-going leviathan in this next video:
