What places i need to discover for Explorer perk?

[SnowStyle]

Hi, just to say i needed to take it and it worked correctly

there was a dialog about traveling, nothing about the perk just chatting, i mean no indication between [...] like other perks, earned 250xp and did check char menu and received Explorer

So maybe you have it and haven't noticed it ? 

[Mitosz]

Hi, just to say i needed to take it and it worked correctly

there was a dialog about traveling, nothing about the perk just chatting, i mean no indication between [...] like other perks, earned 250xp and did check char menu and received Explorer

So maybe you have it and haven't noticed it ? 

GEEZ DUDE, THANKS D:
I was searching for something "blahblahblah [Explorer]". And checking every possible dialogue.
In that case sorry everyone D:
And thanks for your help.
Me so dumb >_<

[Kilgore]

If you visit all towns which are visible by default + all train stations then you can get this perk.