Lake Viti, Iceland
Situated in the crater of the volcano Askja in the north-east of the glacier Vatnajökull. Its name simply means the lake of Askja. Like the neighbouring crater Víti, it was created by an enormous volcanic eruption in 1875.
Crater lake Viti ("Hell"), next to the much larger lake Öskjuvatn, inside the even larger crater, Askja.
Coordinates:
65°02'49.1"N 16°43'34.6"W