Glen Canyon, Arizona, USA
Glen Canyon Dam is a concrete arch dam on the Colorado River in northern Arizona in the United States.
The dam was built to provide hydroelectricity and flow regulation from the upper Colorado River Basin to the lower.
Its reservoir is called Lake Powell, and is the second largest artificial lake in the country, extending upriver well into Utah.
The dam is named for Glen Canyon, a colorful series of gorges, most of which now lies under the reservoir.
Salar de Uyuni (Salt Flats), Bolivia
Salar de Uyuni is the world’s largest salt flat at 10,582 square kilometers (4,086 sq mi).
It is part of the Altiplano of Bolivia in South America.
Light Pillars, Moscow, Russia
A light pillar is an atmospheric optical phenomenon in the form of a vertical column of light which appears to extend above and/or below a light source.
The effect, sometimes also called the crystal beam phenomenon, is created by the reflection of light from numerous tiny ice crystals suspended in the atmosphere or clouds
Sarychev Peak Volcano, Kuril Islands, Russia
Sarychev Peak Volcano is a stratovolcano covering almost the entirety of Matua Island in the Kuril Islands, Russia.
It is a young, highly symmetrical startovolcanic cone. On 12 June 2009, the volcano erupted, sending out ash plumes.
Sarychev Peak previously erupted in 1760, 1805, 1879, 1923, 1927, 1928, 1930, 1932, 1946, 1954, 1960, 1965, 1976, 1986 and 1989.
The peak was named after admiral Gavril Sarychev of the Imperial Russian Navy.