Hvannadalshnúkur, Iceland (2016). The tallest peak in Iceland is this ice-capped volcano. At 2110 m high, this summit is part of the Öræfajökull volcano and can be seen from the famed Diamond Beach near the Glacier Lagoon Jökulsárlón. This stunning, zigzagging aurora flame occurred during an intense geomagnetic storm in 2016. [+]