Urbane indicates a cultured, world-wise, cosmopolitan sort of person. An urbane traveler is a well-traveled person, one who has been to enough cities to understand the customs of city life.
As an adjective, it’s a word which can sometimes have more of a pretentious connotation.
Urbane travelers are thought to be sophisticated, cultured, and civilized, due to their travels.
The noun for it would be urbanity, which means the state of being urbane.
Synonyms for urbane include: worldly-wise, sophisticated, well bred, worldly, debonair, elegant, and cultivated.