Hólahólar Crater in Snaefellsnes
Hólahólar are an ancient crater cluster. One of the craters is open on the side and formed like a huge amphitheater. The deserted farm Hólahólar was formerly the capital of a settlement in Dritvík and Djúpalónssandur but was deserted in 1880 and since then invisible elves (Huldufólk) have been ruling there ever since.