A world where the basic necessities of a peaceful life are a birthright
Where violent crime is nonexistent or extremely rare because problems are better dealt with on both the personal and systemic level.
A world where government truly cares about the long-term wellbeing of its people.
A world part of many worlds where humanity has been able to inhabit many planets, where we can afford a generous lifespan because we don't destroy the resources we have and our population has spread and become immense. All different kinds of people on different planets.

Oh, and where I can preform unnecessary medical procedures on willing participants to fulfill my heart fetish :3

...And MAAAAYBE one place somewhere that you can go to fight no-limits sexy death battles ifyawanta :3 (Although typically such would be banned due to anti-coercion laws.)