I'm rather fond of the Hadeon Eon myself, although molten lava and 450 degree F air temps tend to discourage visitors. If you have a space ship capable of time

I'm rather fond of the Hadeon Eon myself, although molten lava and 450 degree F air temps tend to discourage visitors. If you have a space ship capable of time travel the impact that created the moon is quite exciting. I prefer visiting the waterfall that created the mediterranean for day trips though. Shirt sleeve weather. Watch out for the megafauna though, they are not tame.