Many strange rock formations rising above lava plains, in ICELAND are said to be those of petrified trolls. One of the most dramatic is Hvitserkur, a troll cow poised forever taking a drink of sea water on the northwest coast. Source: Octavia Randolph, 2002
The complete Icelandic staves symbol series. Each artwork is representing an element. They are presented here in the following order : fire, earth, metal, water, wood and air. The symbols are accompanied by stanzas of the Hávamál or Völuspá, written in runes.
Fingels Cave in Scotland (apparently was misrepresented by name and location when I repinned it from another user.)