The Millau Viaduct is a cable-stayed bridge that spans the valley of the River Tarn near Millau in southern France. Designed by the French structural engineer Michel Virlogeux and British architect Norman Foster, it is the tallest bridge in the world with one mast's summit at 343.0 metres (1,125 ft) above the base of the structure.

Participants arrive at the finish line during the annual Maldon Mud Race in Maldon, east England on May 7, 2017. Originating in 1973, the race involves competitors racing around a course through the River Blackwater in Essex at low tide. (Photo by Daniel Leal-Olivas/AFP Photo)

Krastsvetmet, located beside the beautiful Yensei river in the metropolis of Krasnoyarsk, Russia, is a refinery of all types of precious metals on an industrial scale.

A talented artist has created breathtaking intimate portraits by using detailed maps of the world as his canvas. Cardiff-based illustrator, Ed Fairburn, combines the patchwork of roads, terrains and rivers to for his unique sketches. Photo: Ink on a 1977 road map of Germany. (Photo by Ed Fairburn/Rex Features)

The Hawksbill Crag, also known as Whitaker Point, is located along the northern edge of the Upper Buffalo Wilderness in the Ozark National Forest, just south of the Buffalo National River. It is easily one of the most photograped and recognizable features in Arkansas, and is often seen on publications depicting the outdoors in Arkansas. The hike to it is an easy 3.0 mile round trip, and offers scenic vistas, huge boulders, beautiful waterfalls and colorful wildflowers.

“They’ve been obsessing me for years. I searched and found them in Benares, on the banks of the river Gange (India). They arrive here to get rid of everything and to wait for death. This existence can last for years, sometimes decades, almost a life. Opposite to mine, well organised and filled as a human life can be, to try in vain to push the limits of its end”. – Denis Rouvre. (Photo by Denis Rouvre)

The pygmy marmoset (Cebuella pygmaea) is a small New World monkey native to rainforests of the western Amazon Basin in South America. It is notable for being the smallest monkey in the world at just over 100 grams (3.5 oz). It is generally found in evergreen and river edge forests and is a gum-feeding specialist

Fireworks illuminate the sky over downtown Seoul during the International fireworks festival 2007 at Han River on October 13, 2007 in Seoul, South Korea. The United States, Japan and South Korea have team was attending the festival. (Photo by Chung Sung-Jun/Getty Images)