Natural wonders
Natural wonders
Ali Sadr Cave
Ali Sadr Cave is a cave
located in 75 km north of
Hamedan in Iran.
It was formed 130-190
million years ago.
The caves walls can
extend up to 40 meters
high.
It contains several large,
deep lakes.
Mount Vesuvius
Mount Vesuvius located
in the east of Naples,
Italy.
It is the only volcano on
the European mainland
to have erupted within
the last hundred years.
The Grand Canyon
The Grand Canyon is the
largest canyon in the world.
It is carved by the Colorado
River over a period of six
million years.
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