Russian President Dmitry Medvedev prepares to dive with an underwater camera in the river Volga in Russia's Astrakhan region August 16, 2011. Medvedev and Prime Minister Vladimir Putin went for a walk on the river bank in the Astrakhan region in southern Russia, did some spin fishing and then set off for a boat trip to take underwater pictures. Picture taken August 16, 2011.
Russian President Dmitry Medvedev (R) and Prime Minister Vladimir Putin enjoy some fishing on the river Volga in Russia's Astrakhan region August 16, 2011. Russia's two top leaders spent Tuesday fishing and boating on the Volga river in a rare, day-long private meeting, the Kremlin said. Medvedev and Putin went for a walk on the river bank in the Astrakhan region in southern Russia, did some spin fishing and then set off for a boat trip to take underwater pictures. Picture taken August 16, 2011.
Giants construction can block the river and give us energy.
Almendra dam (Spain)
This dam was built near the village of the same name. The lake, which she formed covers an area of ??nearly 900 square miles. Dam height of 200 meters.
Located in Georgia. Despite the fact that the construction of the dam began in the 60s of last century, it was put into operation only 15 years ago. This dam is the highest arched concrete dam in the world, its height reaches 270 meters.
Dam Dworshak (USA)
This work of architects was built in just 6 years old. It is considered one of the highest dams in the western hemisphere - its height is 290 meters.
One of the most famous dams in the world. It is in Iran. The width of the dam - 160 meters, height - 205 meters.
Dam Grande Dixence (Switzerland)
Unique in that it retains water to form a small stream flowing into the lake Lac des Dix, itself, the lake is huge and contains millions of cubic meters of water. The height of the lake above the sea level is 2364 meters.
This is a hydroelectric power plant, located in Black Canyon, on the border of Arizona and Nevada, 48 miles southeast of Las Vegas. Named in honor of Herbert Hoover, 31st U.S. president, played a significant role in its construction