Mount Roraima, two billion years in making, is surrounded by tall cliffs on ALL sides! This mountain’s location – in South America – forms a triple border with Brazil, Venezuela and Guyana. It forms the highest peak of Guyana’s Highland Range.
Located off Cape Perpetua, off from the coast of central Oregon, Thor’s Well. Thor’s Well (also known as ‘Spouting Horn’) is a salt water fountain/sink hole, which is operated by the immense currents of the Pacific Ocean.
Fingal's Cave is a sea cave on the uninhabited island of Staffa, in the Inner Hebrides of Scotland, known for its natural acoustics. The National Trust for Scotland owns the cave as part of a National Nature Reserve.
Lake Retba, or "Lac Rose" in Senegal. Dunaliella salina algae in the water produces a red pigment that uses sunlight to create more energy, turning the waters pink. The lake is also known for its high salt content, which allows easy floating :)