Interesting question.

All the countries on earth. I think there is a lot to discover and feel, and see about the world. I would say that anybody could spend his whole life around the world and he/she would die not knowing or beeing in all the places.
And I think it opens more posibilites and things you can do when you're on earth, because in space you'll have to wear always a space suit. And there may be a lot of planets out there, but a lot of them may not have the proper conditions for humans to live.

 

All the countries on earth

 

all countries for me as well

tho I don't even want to visit all of them, like why go to Somalia or Afghanistan for example?

 

Absolutely another planet. I find very exciting to explore new, completely and remote lands, which could contain animal and vegetal species absent on Earth.
Yeah, visiting undiscovered lands is likely dangerous, but because I'm an unwise person I would still take the risks.

 

That's a heavy question Edward!

Neither. I am not one for travel.

 

All countries. Should be more fun. Think Mother Planet is way more interesting then some planet with zero organism.