Víðgelmir

Surtshellir is a lava cave located in western Iceland, around 60km

Barnafossar is also known as Bjarnafossar, which was its previous

Hraunfossar (Borgarfjörður, western Iceland) is a series of w

Deildartunguhver is a hot spring in Reykholtsdalur, Iceland. It is

The waterfall Glymur, with a cascade of 196 m, is the highest

Geysir (sometimes known as The Great Geysir), in the Haukadalur

Strokkur (Icelandic for 'churn') is a geyser in the geothermic region

Öxarárfoss is a small waterfall in Þingvellir National Park, Ic

İnicrliin Cave (Turkish: İncirliin Mağarası) is a show cave loc

Ballıca Cave (Turkish: Ballıca Mağarası), is a small cave situated at

The Dupnisa Cave (Turkish: Dupnisa Mağarası), aka Dupnisa Caves, is a

Gilindire Cave (Turkish: Gilindire Mağarası), also known as A

Postojna Cave (Slovene: Postojnska jama; German: Adelsberger Grotte;