Best thing in travelling to a new country is learning their culture, language, exploring, tasting their cuisine and viewing lots that just imprints in our mind. Worst thing I have not experienced so far.
Well, the best is that you see another new place in this stunning world of ours. New people, new cultures, new experiences, hell new pictures 😜
Worst? Thats a tough one. I think maybe if you end up having a bad experience in the country? Like pickpocketed? Or being led in the wrong direction (happened with me in delhi once) or fell sick on a trip (happened thrice with me, still gives me nightmares 😒)
Its kinda subjective though! But its mostly nice ❤️