Gyokusendo Okinawa Japan Okinawa World is the largest theme park of Okinawa Prefecture and presents the history, culture and nature of the island in one place. The most visited attraction is Gyokusendo: a 5,000-meter long cave formed about 300,000 years ago. 850 meters of this cavern are open to the public: visitors can walk in the caves evocatively lit and gape osservanfdo the spectacular stalactites and stalagmites.
Gudvangen, Norway by Espen Haagensen - A starry AND windy night and the Grindaflet hut in the Voss mountains. Quite a bit of snow to dig in order to get into the hut. The Grindaflet hut is a self service hut owned by the Norwegian Trekking Association and is open for everybody.