City of Petra
Petra (Arabic. البتراء read "al-Batra") is an ancient city located in the South — West of Jordan, the former capital of Idumea, and later of the Nabataean Kingdom. It is…

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Yellowstone national Park
Yellowstone national Park (Yellowstone national Park or simply Yellowstone, Yellowstone) is the oldest and one of the most famous national parks in the United States. Yellowstone is located in three…

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Amsterdam
Amsterdam (Netherlands) Amsterdam [mmstərˈdɑm]) is the capital and largest city of the Netherlands. It has been the capital of the Kingdom since 1814. It is located in the province of…

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Austria

Blue hole (Red sea)

This term has other meanings, see Blue hole (values).
Blue hole (from the English. Blue Hole is an underwater vertical cave near Dahab in Egypt.

It is surrounded by coral reefs karst sinkhole depth of about 130 meters. From a depth of 52-55 meters, the cave is connected to the sea by a passage. Overhanging over the passage corals formed a kind of arch, hence the name of the Arch.

The traditional route for Amateur divers consists of diving through the Bells (200 m North of the Blue hole), moving along the reef wall and entering the Blue hole through the upper isthmus called the Saddle of the Arch (at a depth of 6-7 meters). Continue reading

Yellowstone national Park
Yellowstone national Park (Yellowstone national Park or simply Yellowstone, Yellowstone) is the oldest and one of the most famous national parks in the United States. Yellowstone is located in three…

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City of Petra
Petra (Arabic. البتراء read "al-Batra") is an ancient city located in the South — West of Jordan, the former capital of Idumea, and later of the Nabataean Kingdom. It is…

...

Blue hole (Red sea)
This term has other meanings, see Blue hole (values). Blue hole (from the English. Blue Hole is an underwater vertical cave near Dahab in Egypt. It is surrounded by coral…

...

Facts about the great wall of China
The great wall of China is one of the most grandiose sights in the world. The largest separation wall in the world by length, an impressive example of ancient defensive…

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