Godafoss, Iceland

Photograph by Orsolya and Erlend Haarberg

A glacial torrent pours over a 40-foot-high ledge at Gođafoss, "waterfall of the gods." After the Icelandic assembly adopted Christianity in 1000, its leader threw his pagan idols into the falls. The mossy island, notes geographer Guđrún Gísladóttir, "is protected from sheep."