What’s the best tea you’ve ever had while traveling?

I just saw a similar post about coffee, but I'm a tea addict through and through. For me it was all the Thai iced teas I had in Chiang Mai Thailand. Just incredible.

Edited to add: Other major favorites of mine have been rooibos tea in Namibia & mint tea in Morocco. Also, one thing I haven't heard anyone mention is the coca tea in Peru. That saved me from horrible altitude sickness and I will forever be grateful.