Angel waterfalls, Venezuela.

Angel Falls, the tallest waterfall in the world, drops nearly a kilometer (about 979m total drop with 807m freefall) from a table-top mountain (tepuy or tepui in the indigenous Pemón language). 

The waterfall has been known as the "Angel Falls" since the Mid-20th century; they are named after Jimmie Angel, a US aviator, who was the first person to fly over the falls. Angel's ashes were scattered over the falls on 2 July 1960.

Angel Falls is one of Venezuela's top tourist attractions, though a trip to the falls is a complicated affair. The falls are located in an isolated jungle. A flight from Puerto Ordaz or Ciudad Bolívar is required to reach Canaima camp, the starting point for river trips to the base of the falls. River trips generally take place from June to December, when the rivers are deep enough for use by the Pemon guides. During the dry season (December to March) there is less water seen than in the other months.

Salar de Uyuni : One of the World’s Largest Mirrors, Bolivia

Salar de Uyuni (or Salar de Tunupa)is the world's largest salt flat at 10,582 square kilometers (4,086 sq mi). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes and is at an elevation of 3,656 meters (11,995 ft) above mean sea level.

The Salar was formed as a result of transformations between several prehistoric lakes. It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar. The crust serves as a source of salt and covers a pool of brine, which is exceptionally rich in lithium. It contains 50 to 70% of the world's lithium reserves, which is in the process of being extracted. The large area, clear skies, and the exceptional flatness of the surface make the Salar an ideal object for calibrating the altimeters of Earth observation satellites.

The Salar serves as the major transport route across the Bolivian Altiplano and is a major breeding ground for several species of pink flamingos. Salar de Uyuni is also a climatological transitional zone since the towering tropical cumulus congestus and cumulus incus clouds that form in the eastern part of the salt flat during the summer cannot permeate beyond its drier western edges, near the Chilean border and the Atacama Desert.