Islands

Photo by Jo@net (Phuket Island)

Photo by kiwinz

Photo by bingbing (Batan Island)

Photo by Romtomtom(Greek Islands)

Photo by Ndecam(Eastern Island)

Photo by NASA Earth Observatory( South Shetland Islands)

Photo by Noel Feans (Illas Cies Islands)

Photo by thinboyfatter (Bribie Island)

Photo by leafbug (Komodo Island)

Photo by Abouid( Cayos Cochinos Island)

Photo by Justin Ornellas (Jeju Island)

Photo by Mr. Empey( Sable Island)

Photo by thinboyfatter (Kawana Island)

Photo by USFSWS(Strawn Island Lagoon)

The Nile

Photo by amerune

The nile passing through Cairo, Egypt.

Niagara Falls

Photo by derekp

The Great Barrier Reef

Photo by Taso.Viglas

Photo by babasteve

Photo by Kyle Taylor, DreamIt.Doit.WorldTour

Rio Tinto

Photo by Big Max Power(BMP)

Photo by marioadaja
Rio Tinto is located in Spain.  The martian-esque landscape has a mining history dating back to ancient times.  The reddish water gets its hue from dissolving iron and it is also highly acidic(pH 2) on account of the mining.

Aguas Azul

Photo by David Tuggy

Yawning Pelican

Photo by Dicktay2000
A pelican having a yawn at a duckpond in NSW, Australia.  

Trees Cocooned in Spider Webs

Photo by UK Dept of International Development
An unexpected phenomenon after the flood in Sindh, Pakistan, spiders cocooned the trees to escape the flood waters.

Frogfish

Photo by Nick Hobgood

Ocellated frogfish live in the western Atlantic, eastern Gulf of Mexico and Caribbean.

The Devil's Bath

Photo by Alan Vernon

The Devil's Bath at Wai-o-Tapu(Sacred Waters) Thermal Wonderland Park is located on North Island, New Zealand.  The vibrant green color of the pool comes from the sulphur and ferrous salts in the water.

Elakala Falls, West Virginia

Photo by Troy Lilly, ForestWanderer
A whirlpool is formed by the currents and orientation of rock at Elakala Falls is located in Blackwater State Park by Davis, West Virginia.

The Dead Sea

Photo by Salim Photography
The Dead Sea aka the Salt Sea is located on the Jordan Rift Valley. It's on the Earth's lowest elevation of land and considered the world's saltiest body of water. The sea has a density of 1.24 kg/L which explains all the floating tourists.