These plants are common throughout East Asia. In China, I was particularly struck by the plants at the Old Summer Palace (圆明园), Beijing, where they have been allowed to take over vast lakes. Japan, too, has some lovely places to see lotus plants, including Ueno park （上野公園）in Tokyo. In Korea, the small but beautiful Anapji pond (안압지) in Gyeongju is a scenic spot to wander through the pink and white blooms in summer, and elsewhere you can find them providing serene backdrops to palaces and temples.
While I've only seen lotus plants in the places I've travelled to in East Asia, there are no doubt even more beautiful locations to see them throughout the rest of Asia, and even further afield too.
|Masses and masses of lotus stretching into the distance at the Old Summer Palace, Beijing, China|